The non-living reservoir,or initial source,for elements such as sulfur,phosphorus,and calcium is
A) air.
B) bones.
C) water.
D) the earth.
E) bodies of dead organisms.
Correct Answer:
Verified
Q22: Matter moves through ecosystems in
A)biogeochemical cycles.
B)living systems
Q23: On average,about _% of the food consumed
Q24: You are a land manager for the
Q25: Cycles involving the elements sulfur,phosphorus,and calcium are
Q26: All populations living in an area make
Q28: A period of decreased metabolism and lowered
Q29: Currently the human population of the earth
Q30: The dominant members of a community often
Q31: The final community in a succession is
Q32: An interconnected system of food chains is
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