Which term best describes the earthworms role in its habitat

a.) abiotic factor
b.) producer
c.)protist
d.) decomposer

Earthworms are a decomposer (D)

Explanation:

They break down things that are dead. Like breaking down dead roots making room for new ones to come in. Also using process of elimination you could take out (b) because it doesn't make food from the sun, abiotic factor is sum that isn't alive so that wouldn't make sense and (C) wouldn't either. So the answer will be (D). Decomposer.

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

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