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Home Q & A Board Biology-Related Homework Help General Biology
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kellydevenney kellydevenney
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6 years ago
The ultimate source of all energy in a
  terrestrial ecosystem is
  a. the organic matter in all the organisms of
  the ecosystem.
  b. electrons from water molecules.
  c. sunlight.
  d. ATP.
  e. inorganic mineral ions in the soil.

Question 2

Gross primary productivity refers to the total
  a. quantity of solar energy available to the
  ecosystem in a given period of time.
  b. quantity of solar energy reaching a given
  area of the ecosystem.
  c. energy trapped initially by the producers.
  d. energy used by the heterotrophs of the
  ecosystem in a given period of time.
  e. energy used by the producers for their
  growth and reproduction
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ydyd
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6 years ago
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kellydevenney Author
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#2
6 years ago
You are really a genius. Thanks
yd
wrote...
#3
6 years ago
NP
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