Answer:
Each experiment reveals a different piece of information that is needed to develop the theory.
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An adaptation is a trait that "evolved" for a particular condition 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. Basically a trait is an adaptation if it is the product of selection, and adaptive if it is beneficial in the present time.
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Answer:
Taxonomy- The science of naming and classifying organisms based on structural comparisons and genetic evidence. 
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All of them. Forests are considered natrual enviornment and people/buildings are man-made environment 
sorry for bad spelling