Multiple Choice
Why do you suppose that tropical rain forests are the richest terrestrial ecosystems in terms of plant and animal diversity?
A) Cold is not a limiting factor.
B) Water is not a limiting factor.
C) Because of the lack of environmental constraints, many evolutionary varieties can survive and reproduce.
D) All of the above are reasons.
E) None of the above-the tropical rain forests are not the richest terrestrial ecosystems.
Correct Answer:

Verified
Correct Answer:
Verified
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