, such as bacteria, breakdown dead organisms and release nutrients back into the soil. A. Producers

B. Decomposers

Decomposers

Explanation:

Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.

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B. Decomposers

Explanation:

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any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.