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Which crustaceans form the base of many food chains

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Answer:

Explanation:

Primary producers — including bacteria, phytoplankton, and algae — form the lowest trophic level, the base of the aquatic food web. ...

Some zooplankton including copepods, rotifers, larval stages of some fish and invertebrates are grazers and drift through the water grazing on phytoplankton.

User Hoja
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