An organism's ________ is its position in the food chain relative to the ecosystem's energy source.
A) habitat
B) niche
C) climax level
D) trophic level
E) keystone level
Correct Answer:
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Q19: The physical place where members of a
Q20: In ecology,a _ community is one that
Q21: Carbon returns to the atmosphere
A) as carbon
Q22: Which is not an important biogeochemical cycle
Q23: Which ecosystem would have the highest net
Q25: As an overall average,about _ of the
Q26: If you were to shine a lightbulb
Q27: The remaining energy in the producer level
Q28: If you gave N₂ to a culture
Q29: Biomagnification occurs with chemicals that
A) dissolve in
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