How do most sessile and burrowing mollusks obtain food?

answer:

marine species live mainly in shallow coastal waters. gastropods use their foot to crawl slowly over rocks, reefs, or soil, looking for food. bivalves are generally sessile filter feeders. they use their foot to attach themselves to rocks or reefs or to burrow into mud.

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the organisms are not adapted to live in some communities or habitats.

b - the respond is innate and varies over time.

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