A) Number of organisms at all levels is equal
B) Amount of energy synthesized and utilized is equal
C) Amount of biomass at all trophic levels is equal
D) Organisms are interdependent on each other
Correct Answer: B
Solution :
[b] An ecosystem is balanced when the biotic (living) and abiotic (non-living) parts of the ecosystem are in equilibrium. This means that the nutrients are able to cycle efficiently, and no community of organisms or natural phenomena is interrupting the flow of energy and nutrients to other parts of the ecosystem.
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