Bio chapter 2 – Flashcards
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Measurements of a plants growth over a two week period Represent
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Data
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Jane Goodall's research on chimpanzees in the wild is an example of
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Discovery science
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The logical conclusion based on observations is called a
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Inference
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You suggest that the presence of water could accelerate the growth of bread mold. This is a
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Hypothesis
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A controlled experiment allows the scientist to isolate and test
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A single variable
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The work of scientist generally begins with
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Making observations and asking questions
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When enough experimental data supports a hypothesis, the hypothesis becomes a
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Theory
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Thinking that someone is out the door when you hear the doorbell ring is an example of a
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Inference
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In science a hypothesis is useful only if
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It can be tested
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The idea that all living things are made of cells is
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A theory
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Biology is a scientific study of
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Life
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An experiment that test effect of a single variable is called a
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Controlled experiment
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A well tested explanation that makes sense of a great variety of observations is a
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Theory
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The ability to reproduce results is an important part of any
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Experiment
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Which of the following might be a valid hypothesis for why a plant appears to be dying
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The plant is not being watered enough. The plant is being watered too much. The plant is receiving too much sunlight
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A falsifiable hypothesis is one that
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Can be proven incorrect
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A hypothesis
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May be disproved by a single experiment
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A theory
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May be modified or discarded
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A model is useful if it
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Explains new observations. Predicts new observations. Matches new observations
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A map is an example of a
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Model
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The use of genetic engineering to produce medicines is an example of
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Technology
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"The bird has brown spots on its wings" is an example of an inference
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False: observation
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A condition that can differ within an experiment is called a variable
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True
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A falsifiable hypothesis is one that can be proven incorrect
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True
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In science, evidence consists of a collected body of data from observations and experiments
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True
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The goal of science is to apply scientific understanding for some specific purpose
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False: technology
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An important goal of a scientists is to ask questions about the natural world
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True
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A child's height is an example of qualitative data
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False: quantitative
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Scientists are persuaded by logical arguments that are supported by evidence
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True
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The everyday meaning of theory is the same as the scientific meaning
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Different
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Most scientist rarely communicate with others
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Always
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At the heart of science is |blank| people asking questions about what they observe in nature and actively seeking answers
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Inquiry
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"The plant in a container A has five offshoots" is an example of |blank| data
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Quantitative
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In the Pfennings' experiment with artificial snakes, the |blank| beings tested was the presence versus the absence of colored rings
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Variable
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The science that studies life is called
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Biology
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An analogy of the brain to a computer is an example of a
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Model
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Compared to a hypothesis, a theory is much |blank| in scope
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Broader
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|blank| is important so that scientists can check one another's claims
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Communication
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The information you record during an experiment is called your |blank|
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Data
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If your flashlight stops working, a reasonable |blank| might be that the batteries are dead
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Hypothesis
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In science, a |blank| is a well tested explanation that makes sense of a great variety of observations
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Theory
