Explain how setae differ among earthworms, marine worms, and leeches.

Each body segment of an earthworm contains four pairs of setae, which are used to move the worm. The setae of marine worms are found in bundles. Leeches do not have setae at all.

Sample Response

Explanation:

Each body segment of an earthworm contains four pairs of setae, which are used to move the worm. The setae of marine worms are found in bundles. Leeches do not have setae at all.

Explanation:

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