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The variety of organisms that exist on Earth today can be directly attributed to A. steady climate over millions of years B. extinction C. speciation that occurs when empty niches are filled D. Both A
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Mar 26, 2022
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The variety of organisms that exist on Earth today can be directly attributed to
A.
steady climate over millions of years
B.
extinction
C.
speciation that occurs when empty niches are filled
D.
Both A and B
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Answer:
the correct answer is D) both A&B
Step-by-step explanation:
CyclingIsBetter
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Mar 31, 2022
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