RNR U OF A 16

Community

Emergent Properties

Molecule < Cell < Tissue < Organ

Viruses can't reproduce because they are not alive. They can't be killed because they are abiotic.

interaction of the proteins *contraction of the muscle

Your body gives off heat after running up several flights of stairs. Drinking water after perspiring while working in the garden on a hot day. A single-celled organism dividing into two separate organisms. A fertilized egg developing into a young chick. *All Of The Examples Above Demonstrate Characteristics Of Life. None of the examples above demonstrate characteristics of life.

population molecule *cell organism

*How bacteria respond to antibiotic treatments. *How algae interact with various fish. *How to produce new varieties of corn plants. How earthquakes can be better predicted.

cell *tissue organ system organ organelle

Your brain. Your nerve cells. *Your thoughts, and your ability to think.

Living organisms maintain homeostasis. Energy flows through living systems while matter is recycled. Evolutionary processes explain both the unity and adaptive diversity of life. *All of these are recurring themes.

*growth development reproduction

energy * matter

natural selection shared ancestry of all life homeostasis * interdependence of life

Unstable conditions will destroy the DNA in cells; this is the most important risk for a cell facing physical or chemical stress. Organisms just change along with whatever is happening in the outside world, which is usually quite steady. They need to keep conditions stable so that they can obtain food. *They must maintain stable conditions to keep their enzymes working and generally to enable the chemical reactions of life.

* Evolution is partly about inheritance. Evidence of evolution is seen in structures such as wisdom teeth and the tail bone in humans. These structures are thought to be \"left over\" from our ancestors and no longer appear to have any essential function in modern humans. Natural selection means that today's organisms are perfectly adapted after millions of years of fine-tuning. No further changes are necessary because of all the progress that has been made by natural selection. *We can see evidence of past natural selection in adaptations such as the camouflage of moths perched on the bark of their host tree. We can also see natural selection at work today if we track how populations change in rapidly changing environments. The theory of evolution does not apply to life today. It is strictly about the history of life: what happened in the past as seen in fossils. Scientists disagree about the main ideas of evolutionary theory because of incomplete or conflicting evidence.

evolution *homeostasis natural selection balance

oxygen gas *enzymes all kinds of organic matter water

Natural selection acts on genetic differences within a population to cause evolution. Individuals do not evolve. Evolution occurs constantly, without end; there is no endpoint in evolution. According to evolutionary theory, you are related to a bacterium, to a yeast cell, to a snake, and to a whale. In fact, you are related to every species now alive on Earth, and to fossil species like dinosaurs as well. * Natural selection is about slow but steady progress. Through it, populations constantly get better-adapted. When this process is completed for all populations, evolution will come to a stop.

* Nutrients cycle among all life forms. Energy flows from sunlight to chemical energy to heat. Nutrients flow from sunlight to organic matter to heat. Energy cycles among all life forms. Nutrients and energy both are continually recycled in a great circle of life.

*The weight of the rats The age of the rats The saline solution given to the rats The amount of drug given to the rats

*No. Yes.

Which type of plant produces the strongest fibers? Which planets have an atmosphere similar to earth's atmosphere? Which type of detergent can remove more types of stains? *Which types of careers are the most rewarding?

Responds to changing environments Consists of one or more cells. Reproduces with the help of DNA * Uses oxygen to survive

Homeostasis *Natural Selection Shared Ancestry Evolution

Each species is created as an ideal and does not change. * Life on earth shares a common ancestor. Individual groups of organisms interacting with other groups of organisms. All of these are components in evolutionary theory.

weight *energy matter chemicals

Organ Organ system Cell * Population

Nurses working in these areas are immune to antibiotics. Nurses working in these areas often are sick because of the toxic effects of exposure to antibiotics. Viruses should be rare or absent from these areas. *Many of the bacteria living in these areas are antibiotic-resistant.

is totally unscientific in nature. She has an opinion but it could not be tested scientifically. * is somewhat scientific (based on observation) but weak. There is inadequate control in the design of the \"experiment.\" is scientific and strong. She has directly observed performance benefits from using the drink.

The researcher did not conduct a good experiment. The audience members are the researcher's superiors and are conducting an evaluation. The audience members did not like the researcher and were being rude. * The audience members were demonstrating proper scientific skepticism.

* \"This product has been approved by a world renowned doctor\" \"The safety of this product has been tested using mouse models\" \"Laboratory experimentation has verified the effectiveness of this product\" All of these are scientific claims

is a form of chemistry, not biology is a social science, like economics, involving products that are bought and sold. * is a form of biological science. is a practical craft that is not really a science.

Recording the mating behaviors of lions in the wild. Using computer models to estimate the potential ecological damage to a region. Observing plant growth in different greenhouse conditions. *All of these are scientific investigations.

* may be helpful to the woman, but do not reflect scientific thinking are stated as a scientific hypothesis, and reflect scientific thinking.

growth development reproduction *DNA is essential for all of these

No. Customer reviews are not trustworthy. Yes. If the product was not effective there would be at least one negative review. Yes. Because many people used this product, it has effectively been tested. *No. Without a controlled experiment the effectiveness of the product has not been significantly verified.

the course online resource *students grades