Multiple Choice
Paleontologists and ecologists agree that _______________.
A) biodiversity is evenly spread over the earthʹs biomes
B) extinction is tied exclusively to human activities
C) speciation is a major cause of biodiversity loss
D) 99% of all species that have ever existed are now extinct
E) more than 99% of all species alive today have been discovered and described
Correct Answer:

Verified
Correct Answer:
Verified
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