TEAS Test Practice Questions – Flashcards
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question
Which is an anterior muscle? a. gluteus maximas b. biceps femoris c. adductor magnus d. quadriceps femoris
answer
D Anterior muscle is located near the front of the body. Of those listed, the quadriceps is the most anterior
question
The lateral side of the right knee would be: a. the kneecap b. closest to the left knee c. farthest from the left knee d. on the underside of the knee
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C Something that is lateral is toward the outer side of the body. The side of the right knee farthest from th left knee would fit this description
question
The ovaries are part of the ________system. a. skeletal b. nervous c. lymphatic d. reproductive
answer
D The ovaries are the egg-producing reproductive organs
question
The headrest on a car may prevent traumatic injury by limiting: a. hyperflexion of the neck b. hyperextension of the neck c. vertrbral compression d. disc dengeneration
answer
B The headrest prevents the head from moving too far backward, or hyperextending the neck beyond its normal range
question
In a whiplash injury, you might expect to see: a. cardiopulmonary problems b. side-to-side spinal curvature c. eventual injury to ligaments d. traumatic injury to ligaments
answer
D Because of the hyperflexion and hyperextension caused by such a collision, it is not uncommon to find tears or stretching of ligaments of the spine. The injury is front to back
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When a junked car is compacted, which statement is true? a. its mass increases b. its mass decreases c. its density increases d. its density decreases
answer
C Since density = mass/volume, it should be obvious that the decrease in volume as a car is crushed should lead to a increase in density. Nothing happens to change the mass of the car.
question
Which is an example of deductive reasoning? A. Ten of the 100 applicants are left-handed; therefore 10% of the general population must be left-handed B. I know several left-handed artists; therefore left-handed people must have artistic aptitude C. Left-handed people are artistic; Jon is left-handed. Therefore, John must be artistic. D. I see that Jon is left-handed. Jon is a gifted artist. Therefore left-handed people must be gifted artists.
answer
C In deductive reasoning, a hypothesis follows from a set of premises. The premises may be true, in which case the reasoning is sound, or they may be untrue or at least dubious, as in this example.
question
If gas A has four times the molar mass of gas B, you would expect it to diffuse through a plug: a. at half the rate of gas B b. at twice the rate of gas B c. at a quarter the rate of gas B d. at four times the rate of gas B
answer
A Set up as a simple equation if it helps - Suppose that gas A has a molar mass of M1 and gas B has a molar mass four times that M2. Now suppose that that M1 = 1, and M2 = 4. THe square root of 4/1 = 2/1 so the rate of effusion for gas A is half that of gas B
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What is the percent by volume of ethanol in 120ml of a solution containing 35ml of ethanol dissolved in water? a. 22.6% b. 29.2 % c. 35% d. 41.1%
answer
B Essentially you are determining the concentration as if it were in a 100ml solution, which is what percent really means. You could set up the equation: 35/120 = x/100 3500/100x x = 29.2
question
Three students measured the mass of a product of combustion. They recorded measurements of 5.14g, 5.16g, and 5.17g. If the known mass of the product is 5.3g, the students measurements were _____________? a. accurate b. precise c. both precise and accurate d. neither accurate or precise
answer
B The students measurements were precise in that they correspond closely with one another. However, since the true measurement differed from theirs by at least .13g, the measurements were not terribly accurate.
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Which would not be a likely component of quantitative investigation? a. record keeping b. data management c. graphing data d. interviewing
answer
D A, B, and C are definitely quantitative, but interviewing may or may not be
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Which type of nutrient does not provide the body with energy? a. vitamin b. carbohydrate c. fat d. protein
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A Some nutrients supply energy, others support metabolism. Nutrients in the first set include carbohydrates, proteins, and fats. Those in the second set include water, vitamins, minerals.
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Why might certain young people be underweight? a. They are growing in height faster than they are gaining weigh b. they eat little protein and too much fat and sugar c. they eat several meals a day and fail to exercise enough d. they seldom eat a meal that contains foods from all food groups
answer
A This is a common cause of being underweight in adolescents
question
A 20ml sample of pure gas is enclosed in a glass cylinder at 20 degrees C. If the cylinder is placed in an ice bath at 0 degrees C, what happens to the gas's volume. assuming that the pressure remains constant? a. it increases b. it decreases c. it stays the same d. it rises then falls
answer
B If a temperature of gas is decreased at a constant pressure, the volume decreases
question
A student predict that coffee beans grown in Brazil contain more caffeine than those grown in Nigeria. This prediction corresponds to which of the following steps in the scientific method? a. formulating a hypothesis b. collecting data c. analyzing data d. drawing a conclusion
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A Making a prediction that is to be tested is part of the formulation of a hypothesis
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Given the four wires below, which would you expect to have the greatest resistance? a. 1km of American Wire Gauge 1; diameter 7.35 b. 1km of American Wire Gauge 2; diameter 6.54 c. 1km of American Wire Gauge 3; diameter 5.83 d. 1km of American Wire Gauge 4; diameter 5.19
answer
D Resistance of a wire depends on the length, material, and cross-sectional area. Given four wires of the same length and material, the thinnest wire would have the highest resistance.
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Which statement regarding energy content is true? a. decomposers -> secondary consumers b. primary consumers -> producers c. producers -> secondary consumers d. secondary consumers -> primary consumers
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C The greatest energy content is at the base of the energy pyramid, where the producers of energy congregate; therefore, producers -> primary consumers -> secondary consumers -> decomposers
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Why do we perceive chlorophyll as green? a. it absorbs yellow and blue light b. it primarily absorbs green light c. it fails to absorb green light d. it primarily absorbs red light
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C Chlorophyll absorbs red and blue light but reflects green light
question
How does the nervous system work with the muscular system? a. the muscles of the body produce chemicals that feed the nerves b. the nervous system releases chemicals that remove excess waste from the muscles c. the muscular system provides input that allows the nerves to make decisions d. the nervous system tells the muscles how to respond to the environment
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D The nervous system is made up of the brain, spinal cord and nerves. It receives and transmits signals from the environment that regulate voluntary and involuntary movement
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In an experiment conducted to compare hours of sleep clocked by male and female freshman in college, the gender of the freshman is which type of variable? a. dependent b. independent c. responding d. random
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B The dependent variable is the one that is affected by the independent variable. In this case, the gender of the subjects is not affected by the hours of sleep, but the sleep patterns may be affected by the gender of the subjects
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Which organ system is primarily responsible for regulating muscle growth? a. the skeletal b. the endocrine c. the nervous d. the reproductive
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B Hormones from the endocrine system particularly from the pituitary gland, regulate growth
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Which ion would you expect to dominate in water solutions of bases? a. MgCl2 b. 2HCl c. H+ d. OH-
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D As a general rule of thumb, for acid solutions [H+] > [OH-] for basic solutions [H+] < [OH-] and for neutral solutions or for pure water [H+] = [OH-]
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Why doesn't a raindrop accelerate as it approaches the ground? a. gravity pulls it down at a constant rate b. air resistance balances gravitational force c. it's mass decreases, decreasing its speed d. objects in motion decelerate over distance
answer
B Gravity in fact causes acceleration making choice A incorrect, Unless air resistance counteracts that acceleration, which it may easily do for an object as small and lightweight as a raindrop. Raindrops may lose mass, but that would not decrease their acceleration. Choice D violates Newton's first law of motion
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Which vehicle has the greatest momentum? a. 9000kg railroad car at 3m/sec b. 2000kg auto at 24 m/sec c. 1500kg mini coupe at 29 m/sec d. 500kg glider at 89 m/sec
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B Momentum is the product of velocity and mass, and the greatest product of the four choices presented is 48,000kg x m/sec
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A clown hangs two balloons from either end of a hanger. The air from on balloon is released, and the hanger tilts. Which principle is illustrated? a. gas is matter, and therefore has mass b. gas has volume that is not measurable c. released gas has a higher temperature than inert gas d. matter may never be destroyed
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A It is a loss of matter that causes the hanger to tilt
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When a scientist graphed the correlation between populations of a certain species of fish and the temperature of the water in which they lived, she discovered that as the temperature decreased, the population went down. How would you describe this correlation? a. direct b. inverse c. scattered d. logarithmic
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A If large values of one variable match large values of the other, and small values of the first variable match the small values of the other, the correlation is direct, whether the values increase or decrease
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The dorsal body cavity is ______ to the ventral body cavity. a. medial b. deep c. posterior d. anterior
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C The dorsal cavity contains the spinal column making it posterior or toward the back of the body, compared to the ventral body cavity which contains the structures of the chest and abdomen
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Which part of the brain is most posterior? a. frontal lobe b. parietal lobe c. temporal lobe d. occipital lobe
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D The occipital lobe is farthest back in the skull, posterior to the other parts of the brain
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The trachea is part of the ______ system? a. cardiovascular b. endocrine c. respiratory d. digestive
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C The trachea, or windpipe, filters the air we breathe an funnels it into the bronchi
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Which is a major difference between eukaryotic and prokaryotic cells? a. eukaryotic have DNA and prokaryotic have RNA b. Eukaryotes are animal cells, and prokaryotes are plant cells c. Eukaryotes have nuclei and prokaryotes do not d. eukaryotes house ribosomes, and prokaryotes have no ribosomes
answer
C A good way to remember this is to know that karyose, meaning "kernel" is used to refer to the nucleus of a cell. Pro- means before, and eu- means true. So eukaryotes have a true nucleus and prokaryotes are supposedly an earlier form of cells, ones with no nucleus
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One difference between DNA and RNA is that: a. in RNA, adenine bonds with uracil b. in RNA, guanine is replaced by adenine c. DNA has three bases, whereas RNA has four d. DNA lacks the hydrogen bonds found in RNA
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A As the DNA molecule is translated into RNA, the pairing of bases changes. Adenine no longer pairs with thymine, but rather with uracil
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To determine the effect of disinfectant concentration on the resistance of bacteria, a researcher mixed samples of the same disinfectant in 1:3, 1:1 and 3:1 ratios with water and then spread each sample on a filter paper disc and placed the disc onto a Petri dish containing an E. coli bacteria. There was a greater inhibition zone for the 3:1 concentration of disinfectant, but no significant change in inhibition zone was found across the generations. What would NOT be the next logical step for the researcher? a. continue the experiment another four generations b. repeat the experiment, using a second disinfectant c. repeat the experiment, using a different bacterium d. try again, using 1:2, 1:1 and 2:1 concentrations
answer
D, If no significant difference is seen with the original concentrations, these concentrations are unlikely to show any significant difference, either. Any of the other choices might be a reasonable extension of the original experiment
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Which of the following steps follows hypothesis development in scientific process? a. problem identification b. question formulation c. data collection d. revision and review
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C Once you have identified the problem, formulated aa question, and developed a hypothesis, you are ready to collect data and perform the experiment
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Which of these taxonomic ranks is most specific? a. order b. phylum c. kingdom d. domain
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A Classifications from least to most specific are domain, kingdom, phylum, class, order, family, genus and species
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Which part of the cell houses the organelles? a. vacuole b. plasmids c. cytoplasm d. cell wall
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C An organelle is any differentiated structure within the cell; examples include vacuoles and mitochondria. All are located within the cytoplasm, that liquid portion within the cell membrane
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Which stage of mitosis occurs directly after prophase? a. anaphase b. prophase II c. metaphase d. telophase
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C Prophase II is a stage of meiosis. In order, the stages of mitosis are prophase, metaphase, anaphase and telophase. Acronym: IPMAT (starts with interphase...)
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Which nitrogenous base is not found in RNA? a. cytosine b. guanine c. thymine d. adenine
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C In RNA, thymine is replaced with uracil
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________is a form of respiration that takes place without __________. a. fermentation, oxygen b. photosynthesis, carbon dioxide c. metabolism, nitrogen d. diffusion, sugar
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A Fermentation is the anaerobic breakdown of sugar into alcohol
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Of these layers of the atmosphere, which is closest to Earth? a. Troposphere b. Stratosphere c. Mesosphere d. Thermosphere
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A The troposphere ranges from Earth's surface to between 9km an 17km above Earth
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Which is NOT an example of connective tissue? a. Bone b. Cartilage c. Blood Vessel d. Myelin
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D Cartilage tendons and ligaments are composed of connective tissue, and blood vessels include connective, epithelial and muscle tissue. Myelin is made of nervous tissue.
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Which is a part of the body's nonspecific defense system? a. T cell b. B cell c. Skin d. Antibody
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C If it is nonspecific, it does not distinguish among invading organisms. The skin and inflammatory responses are nonspecific.
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The esophagus is ___________ to the stomach. a. posterior b. lateral c. proximal d. superior
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D The esophagus is toward the upper end of the body compared to the stomach making it superior
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Which would be an anterior feature of the human head? a. the nose b. the ears c. the occipital lobe d. the temporal lobe
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A Something that is anterior is toward the front of the body. The nose is the most anterior feature of the given choices.
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The arteries are part of the ________system? a. nervous b. endocrine c. lymphatic d. cardiovascular
answer
D
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While conducting an experiment, a scientist determines that the data did not support the original theory. This determination corresponds to which of the steps of scientific methodology? a. formulating a hypothesis b. collecting data c. analyzing data d. drawing a conclusion
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C The comparison of results to the original hypothesis takes place as you analyze data
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Nearly all of the gaseous exchanges between air and blood take place at the level of the a. pleura b. trachea c. bronchioles d. alveoli
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D The alveoli are the tiny air sacs in the lungs where exchange of oxygen and carbon dioxide take place
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How do the intercostal muscles between the ribs assist with respiration? a. by protecting the delicate bronchioles and alveoli b. by signaling a decrease in intraalveolar pressure c. by enlarging and reducing the space in the thorax d. by maintaining a medial separation between pleurae
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C The intercostals are muscles that expand and contract the chest, allowing it to draw in and expel air
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What do micrometers, chronometers and phonometers have in common? a. all are measurement tools b. all involve timing in experiments c. all describe distances d. all are related to qualitative data
answer
A The root "meter" means to measure. Any of these items, which measure distance, time and sound, might be used to collect quantitative data.
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How should a researcher test the hypothesis that eating chocolate leads to acne in teenagers? a. take 100 teenagers and feed them each one a different amount of chocolate daily for 60 days, then test for acne b. take 100 teenagers and feed 50 two bars of chocolate daily for 60 days, while the other 50 eat no chocolate. then test for acne c. take 1 teenager and feed him or her chocolate for 30 days, and no chocolate for 30 days, then test for acne d. take 100 teenagers and feed them no chocolate for 30 days, and two bars of chocolate for 30 days, then test for acne
answer
B
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To determine whether the population lessened with the depth of a lake, divers collected samples at depths of 1, 2, 3, and 4 meters. After a visual collection, samples were tested for turbidity and for levels of two pollutants - nitrates and ammonia. Although turbidity increased with depth amounts of pollutants remained constant. What would be the next logical step for the experimenters? a. continue to test at lower depths. b. perform the same test in saltwater c. repeat the visual inspection after 12 hours d. repeat the collection and testing of samples 1 week later
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A Since the point of the experiment is to compare pollution levels at various depths in a lake, only this choice continues the experiment.
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Vitamin D may be replenished through fortified milk and ... a. sunshine b. protein c. fluoride d. exercise
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A Sunlight is the primary source of vitamin D in humans - ultraviolet photons are absorbed by 7-dehydrocholesterol in the skin, leading to its transformation to previtamin D3 which is rapidly converted to vitamin D3
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Lack of vitamin C may lead to a condition known as... a. kwashiorkor b. pellagra c. rickets d. scurvy
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D Scurvy was once the disease of sailors, because months at sea without fruits and vegetables led to a vitamin C deficiency. Without vitamin C the human body cannot synthesize collagen, leading to spongy tissue and bleeding sores.
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A kilogram of air is compressed from 1 cubic meter to .5 cubic meter. Which is true? a. the density is doubled b. the density is halved c. the mass is doubled d. the mass is halved
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A The mass remains the same, at 1 kg. Because the volume is now halved, the density (mass/volume) is doubled.
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You contain two odorous gases in vials with porous plugs. Gas A has twice the mass of Gas B. Which observation is most likely? a. you will smell gas A before you smell gas B b. you will smell gas B before you smell gas A c. you will smell gas A but not gas B d. you will smell gas B but not gas A
answer
B A gas with a greater mass effuses less rapidly than a gas with a lesser mass. Therefore the gas with less mass would be smelled sooner.
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Unlike inductive reasoning, deductive reasoning typically moves from ________ to _______ a. hypothesis, conclusion b. generalities, specifics c. observations, hypothesis d. problem, solution
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B Deductive reasoning takes generalizations and applies them to specific examples, i.e. All dachshunds are dogs. Bernie is a dachshund. Therefore Bernie is a dog.
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If you have 100g of a 30% sodium chloride solution, what is the mass of the water? a. 30g b. 66g c. 70g d. 100g
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C The mass of the solution is simply the mass of the solute plus the mass of the solvent. In this case, there must be 30g of NaCl and 70g of H20.
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If 3 moles of gas are added to a container that currently holds 1 mole of gas, how will the pressure within the container change, assuming temperature remains constant? a. the pressure will be 3 times as great b. the pressure will be 4 times as great c. the pressure will be 6 times as great d. the pressure will not change
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B As long as the temperature remains the same, when you quadruple the number of gas particles in a given volume, you quadruple the pressure
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How might the energy use of an appliance be expressed? a. power = energy x time b. time + energy = power c. energy = power x time d. Energy/power = time
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C Using this formula, energy is often measured in kilowatt hours. For example if you use a 100-watt light bulb 12 hours a day for 30 days, you will have used 100 x 360 watt hours of 36 kilowatt hours
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A bicycle and a car are both traveling at a rate of 5 m/sec. Which statement is true? a. the bicycle has more kinetic energy than the car b. the bicycle has less kinetic energy than the car c. both vehicles have the same amount of kinetic energy d. one the car has kinetic energy
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B Kinetic energy is the energy of an object in motion. The greater the mass of that object, the greater its kinetic energy
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Which vehicle has the greatest momentum? a. a 4000kg railroad car traveling at 5 m/sec b. a 1500kg automobile traveling at 22 m/sec c. a 120kg motorcycle traveling at 40 m/sec d. a 500kg glider traveling at 52 m/sec
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B Momentum is the product of velocity and mass, so the momentum of a) is 20,000kg x m/sec, b) 33,000kg x m/sec, c)4800kg x m/sec, d) 26,000kg x m/sec
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Which is an important aspect of analysis of data during an experiment? a. determining whether the data supports the hypothesis b. measuring and recording observations c. recording data in the form of tables and graphs d. comparing a control group to an experimental group
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A All of the other steps refer to the experiment portion of the scientific process. In the analytic stage, you determine whether the data are reliable and whether they support the original hypothesis
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How does the integumentary system work with the nervous system? a. The integumentary system removes heat for the neurons and the nervous system b. the nervous system circulates nutrients outward to the integumentary system c. Touch input via the integumentary system sends messages to the nervous system d. Messages from the nervous system affect the color and texture of the skin
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C The integumentary system includes the skin, hair, nails, and assorted glands. Receptors embedded in the skin receive information regarding heat, pain, air flow and so on, which is transported through the nervous system to the brain.
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The organ system primarily responsible for storing materials is the ____________? a. skeletal b. endocrine c. lymphatic d. cardiovascular
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A Bone tissue stores a variety of minerals, from calcium to phosphorus, releasing them into the bloodstream as needed.
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Sublimation is the change in matter from solid to gas without passing through a liquid phase. Outside the laboratory, which solid provides the best example of this? a. iron b. silver c. salt crystal d. dry ice
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D Dry ice is frozen carbon dioxide. As it breaks down, it transforms directly into gas without passing through a liquid phase. Sublimation of metals is possible, but not "outside of a laboratory setting".
question
In an experiment designed to contrast flu infection rates in kindergartners in urban and rural schools, which variable might be considered extraneous? a. age b. illness c. gender d. habitat
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C The age is not extraneous, as all subjects are kindergartners, the illness rate is not extraneous, and the habitat is apparently the point of comparison. There is no differentiation between boys and girls, implying that their gender is an extraneous variable.
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A scientist completes an experiment and wishes to determine the reliability of the data. Which is the best way to do this? a. review experiments that use similar data b. check the conclusion against the hypothesis c. graph the data d. repeat the experiment
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D Rerunning the experiment is the best way to prove your results reliable. Reviewing experiments that use similar variable is a possible check of reliability, but its important that those variables be as close as possible to the similar experiment
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Which of the taxonomic ranks is the most general? a. class b. genus c. species d. order
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A KPCOFGS stands for Kingdom, Phylum, Class, Order, Family, Genus
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Which gland is located superior to the kidney? a. pituitary b. adrenal c. hypothalamus d. pancreas
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B The adrenal gland sits atop the kidneys and produce a variety of hormones, from cortisol, and testosterone to epinephrine and norepinephrine
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What results from the second stage of meiosis? a. two haploid cells b. four haploid cells c. two diploid cells d. four diploid cells
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B In the first stage of meiosis, the parent cell splits into two diploid cells. In the second stage, those two cells split to form four haploid cels, each with only one set of chromosomes from the parent cell.
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The weak bonds between bases in a double helix always include an atom of ___________? a. helium b. carbon c. hydrogen d. phosphorus
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C Hydrogen bonds between complementary bases (adenine and thymine or cytosine and guanine) stabilize and strengthen the double helix structure of DNA
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Autotrophic organisms such as plants and algae perform a. only respiration b. only photosynthesis c. both respiration and photosynthesis d. neither respiration nor photosynthesis
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C Autotrophs are self-sufficient and make their own food through photosynthesis, but they must also then convert this food to energy via respiration, as other living organisms do
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Bears, starfish and toads belong to the same a. species b. phylum c. family d. kingdom
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D Bears and toads have backbones, so both are in the phylum Chordata. Starfish are echinoderms, in the phylum Echinodermata. All are in the kingdom Animalia.
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Given the hypothesis :"If smoking causes throat cancer, people who smoke will have a higher incidence of throat cancer," what would be the experimenter's most logical control group? a. doctors b. smokers c. non smokers d. children
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C You would need to compare people who smoke to people who do not smoke to whether the variable of cancer incidence is truly dependent on smoking.
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What is an example of igneous rock? a. basalt b. marble c. limestone d. gneiss
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A Basalt is an igneous rock, formed from melted rock that has cooled and solidified
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What type of muscle tissue is contained in the walls of the body's hollow organs? a. smooth b. striated c. cardiac d. skeletal
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A Smooth muscle tissue lines the blood vessels, stomach, intestines, uterus and bladder. Most smooth muscle tissue is involuntary, meaning that it is not under conscious control
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Which T cells stimulate the production of antibodies by B cells? a. Suppressor T cells b. Helper T cells c. Cytotoxic T cells d. Both A and B
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B a suppressor T cell tels the B cell to stop making antibodies, whereas a helper T cell tells it to start
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What prevents food from entering the windpipe? a. the uvula b. the trachea c. the epiglottis d. peristalsis
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C The epiglottis is a flap of cartilage that covers the windpipe during the activity of swallowing.
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Into which chamber of the heart does deoxygenated blood flow first? a. left atrium b. right atrium c. left ventricle d. right ventricle
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B
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The digestion of which product begins with the secretion of salivary amylase? a. protein b. lipid c. starch d. amino acid
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C Amylase begins the process of breaking down starch into sugar
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Which part of the nervous system is termed involuntary? a. somatic b. autonomic c. central d. peripheral
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B The autonomic nervous system is part of the peripheral nervous system - the part that is involuntary. It affects such processes as heart rate, digestion, perspiration and so on. The somatic part of the peripheral system is the part that is voluntary.
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Which hormone stimulates uterine contractions? a. oxytocin b. progesterone c. estrogen d. prednisone
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A Oxytocin is released from the pituitary to stimulate labor and later initiates the letdown of milk.
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Overpopulation occurs when the _____ in a region exceeds the _______. a. crude birth rate, crude death rate b. crude death rate, crude birth rate c. infant mortality rate, morbidity rate d. morbidity rate, infant mortality rate
answer
A
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A driver's car overheats. He hypothesizes that a broken fan belt has caused this problem. Which discovery is MOST likely to cause him to revise his hypothesis? a. reduction in outdoor temperature b. an intact fan belt c. a temperature warning light d. a crack in the radiator
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B Although a crack in the radiator might hint at a problem other than the broken fan belt, an intact fan belt would prove the original hypothesis incorrect
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Shaka _________completed her residency a. finaly b. finally c. finely d. final
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B
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The puppy chased _____ tail as the children watched _______. a. its, delightedly b. it's, delightedly c. its, delitedly d. it's delitedly
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A
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Three days for now, the horses _________. a. performing in a show b. performed in a show c. will perform in a show d. have performed in a show
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C
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The iterate teacher moved continually from one school to another within the district. What is the error in this sentence? a. iterate b. continually c. within d. district
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A
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Too many potential job choices put Martin in a quandary. What is the simple predicate of this sentence? a. potential b. choices c. put d. Martin
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C The predicate is the verb
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Kalinda divulged some qualms over her lack of experience. What kind of sentence is this? a. imperative b. interrogative c. exclamatory d. declarative
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D Declarative sentence makes a declaration, or statement
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Polydactylism, the presentation of extra digits on hands or feet, is carried on the dominant allele. In the case of two parents with polydactylism what percentage of their offspring are predicted to manifest the anomaly? a. 25% b. 50% c. 75% d. 100%
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C If the trait is carried on the dominate allele, either an AA combination or an Aa combination results in manifestation of the trait. AA | Aa ------- Aa | aa
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Roman Numeral M
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1000
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Roman Numeral D
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500
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Roman Numeral C
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100
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Roman Numeral L
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50
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Roman Numeral V
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5
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List the 6 parts of a scientific argument
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Problem identification, question asking, hypothesis development, data collection and experimentation, analysis, conclusion
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Deductive reasoning
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Moves from general to specific
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Inductive reasoning
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Arrives at general principles from specific facts
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Which of the following happens during inspiration? a. carbon dioxide enters the lungs from the arterioles around the alveoli b. oxygen leaves the lungs through the arterioles around the alveoli c. the diaphragm contracts d. the diaphragm relaxes
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When the diaphragm contracts, the chest cavity enlarges, creating negative pressure in the chest cavity and pulling air into the lungs
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T/F The nervous system directs bodily defenses against external stimuli
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True
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T/F The nervous system regulates heart and breathing rates
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True
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T/F The nervous system supplies the body with oxygen and removes carbon dioxide
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False
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T/F The nervous system releases heat build up by the muscular system
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False, this is a function of the integumentary system
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The digestion of carbohydrates begins in the _________________.
answer
mouth
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The propulsion of food through the gastrointestinal tract is called a. chemotaxis b. digestion c. peristalsis d. metabolism
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Peristalsis
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The surface area for absorption in the small intestine is increased as a result of: a. enzymatic action on nutrients b. villi and microvilli c. mechanical breakdown that occurs during chewing d. the parasympathetic nervous system
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B Villi and microvilli greatly increase the surface area for absorption
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What kind of immunity is produced by a vaccine? a. naturally acquired passive immunity b. artificially acquired passive immunity c. naturally acquired active immunity d. artificially acquired active immunity
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D Vaccines provide an artificial source (as compared to a natural source that comes from actually having a disease) of active immunity that stimulates antibody and memory cell production
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Which of the following are released by damaged cells in an effort to draw white blood cells to the area of damage? a. phagocytes b. cytokines c. interferons d. leukocytes
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B Damaged tissue releases cytokines, which attract white blood cells to the area of infection or injury
question
What is the physiological benefit of a mild to moderate fever? a. warns the individual that body is under attack by a pathogen b. stimulates release of macrophages c. decreases metabolism d. enhances destruction of pathogens
answer
D The warm body temperature that occurs during a fever accelerates the destruction of pathogens and increases the activity of white blood cells
