The act of friction on an object
Answer:They must keep their internal environment within a narrow range of conditions.
Explanation:
<span>An adaptation is a trait that "evolved" for a particular condition or circumstance that allows the animal to survive. Something is adaptive if it is a useful trait but not necessarily one that occurred in response to a particular selection pressure.</span>
Answer:
B. Prokaryotic and Eukaryotic
Explanation:
Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic, which do not.
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Fitness is the quantitative representation of natural and sexual selection within evolutionary biology. It can be defined either with respect to a genotype or to a phenotype in a given environment.
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