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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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Jayfan25 Jayfan25
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6 years ago
Paleontologists estimate that ________.
 
  A) extinction is tied exclusively to human activities
  B) more than 99 of all species alive today have been discovered and described
  C) 99 of all species that have ever existed are now extinct
  D) biodiversity is evenly spread over the earth's biomes
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heyouheyou
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6 years ago
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Jayfan25 Author
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6 years ago
this is exactly what I needed
sleinhi
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Yesterday
Thanks
Ctownsend
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2 hours ago
This site is awesome
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