Ecologists make models to gain insight into complex phenomena such as the effects of global warming on ecosystems.
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<span>Similarities in the early development of chickens and opossums suggest that these organisms share a common ancestor. It might be difficult to answer such questions without any choices, but knowledge is important. I hope that this answer has actually come to your great help.</span>
Answer:
A) Blood Type
Explanation:
Look on the other answer.
