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Home Q & A Board Biology-Related Homework Help General Biology
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bunnies bunnies
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Posts: 426
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6 years ago
Which of the following is most likely the cause
  of the current extinction crisis?
  a. asteroid impact
  b. human activity
  c. adaptive radiation
  d. tectonic activity
  e. climate change

Question 2

The current extinction rate is estimated to be at
  least how much greater than the background
  extinction rate?
  a. 2
  b. 5
  c. 10
  d. 50
  e. 100
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lex2013lex2013
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#1
Posts: 310
Rep: 1 0
6 years ago
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bunnies Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
Brownr40
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Yesterday
Just got PERFECT on my quiz
Mcb
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2 hours ago
Brilliant ツ
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