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Home Q & A Board Biology-Related Homework Help General Biology
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kmtz77 kmtz77
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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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ModorfielModorfiel
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6 years ago
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kmtz77 Author
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6 years ago
Good timing, thanks!
Marcie D
wrote...

Yesterday
You make an excellent tutor!
kc123
wrote...

2 hours ago
Correct Slight Smile TY
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