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Home Q & A Board Biology-Related Homework Help General Biology
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Havakajs Havakajs
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5 years ago
Over the past 400 years, humans have documented the extinction of more than ________ species. This modern rate of species extinction is estimated to be ________ the normal extinction rate seen in the fossil record.
A) 100; about the same as
B) 400; about double
C) 1,000; over 100 times greater than
D) 10,000; at least 1 million times greater than
Textbook 
Campbell Biology: Concepts and Connections

Campbell Biology: Concepts and Connections


Edition: 8th
Authors:
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anavervalenanavervalen
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5 years ago
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Havakajs Author
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5 years ago
Thanks
ealvino1610
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Yesterday
This helped my grade so much Perfect
kamikazekota
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2 hours ago
Thanks for your help!!
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