How does phosphorus enter the biological portion of the cycle?
A) Land plants take up dissolved phosphate from soil water.
B) Bacteria fix phosphate from the atmosphere.
C) Consumers eat phosphate-containing soil.
D) Bacteria fix phosphate from water.
E) Erosion of rocks moves phosphate into water, which consumers drink.
Correct Answer:
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Q14: When describing food webs, the term "everything
Q15: Which organisms would be part of a
Q16: Four of the five answers listed below
Q17: What is the major reservoir of phosphorus?
A)atmosphere
B)sedimentary
Q18: In ecosystems, primary consumers are _.
A)herbivores
B)carnivores
C)scavengers
D)decomposers
E)detritivores
Q20: By the process called _, an organism's
Q21: Which gas is increasing the most in
Q22: Primary production is the _.
A)rate of photosynthesis
B)rate
Q23: Producers take up _ from the atmosphere
Q24: Producers are present at which trophic level?
A)first
B)second
C)third
D)fourth
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