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Home Q & A Board Biology-Related Homework Help General Biology
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qwerqwerqer qwerqwerqer
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6 years ago
Four of the five outcomes listed below are related to
  the accumulation of oxygen in the atmosphere. Select
  the exception.
  a. Further chemical origin of living cells stopped.
  b. Chemical attacks by oxygen radicals stopped.
  c. Aerobic respiration evolved.
  d. With few exceptions, complex organic
  compounds could no longer form.
  e. Some cells detoxified oxygen by using it to
  accept electrons.

Question 2

Four of the five gases listed below were components
  of the first primitive atmosphere simulation
  experiment. Select the exception.
  a. CH4
  b. CO2
  c. H2
  d. H20
  e. NH3
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noah.ratliffnoah.ratliff
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6 years ago
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qwerqwerqer Author
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6 years ago
Literally the most helpful website ever
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6 years ago
Monkey
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