Multiple Choice
It is difficult to estimate current rates of extinction, but we know that extinction rates have risen dramatically in recent years because
A) most species in danger of extinction are microscopic.
B) new species are evolving as fast as species are becoming extinct.
C) current rates of extinction are much higher than that of background rates.
D) the fossil record is unreliable.
E) background extinction rates have increased.
Correct Answer:

Verified
Correct Answer:
Verified
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