Put the following organisms in an aquatic food chain in the order in which energy flows through them, explaining the reason for their placement.

small fish, mammal, phytoplankton, zooplankton.

Phytoplankton, Zooplankton, Small fish, Mammal

Explanation:

A food chain is a linear chain where organisms eat and being eaten by one another. The food chain shows the energy transfer of different organisms i.e. from producers to higher order consumers. In aquatic food chain phytoplanktons are the producers and eaten by Zooplanktons. Zooplanktons are free living aquatic animals which consume energy from phytoplanktons. Then the smaller fishes takes the place of secondary consumers which feed on zooplankton. Finally the tertiary and quaternary consumers. Here mammal are whales which may be tertiary or quaternary consumer. In this way all organisms get energy from one another.

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