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Home Q & A Board Biology-Related Homework Help General Biology
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solaiman solaiman
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6 years ago
Estimates vary, but reasonable estimations of extinction rates suggest that extinction is occurring at a
  rate approximately __________ above the normal background rate.
  a. 10
  b. 100
  c. 1000
  d. 10,000
  e. 1,000,000

Question 2

Biological diversity is an index of the variety of living organisms in an ecosystem, and includes:a.
   species richness only.
  b. species richness, genetic diversity, and ecosystem diversity.
  c. species richness, biosphere diversity, and ecosystem diversity.
  d. population diversity and ecosystem diversity.
  e. genetic diversity only
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bambino131913bambino131913
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6 years ago
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solaiman Author
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6 years ago
Smart ... Thanks!
vanna2014
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Yesterday
Just got PERFECT on my quiz
kater28
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2 hours ago
This site is awesome
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