Mollusks that have two shells and an open circulatory system are called ___________.

Mollusks with an closed circulatory system

Mollusks that have one or no shells and use a radula

The movement of squids and octopuses

Thin layer that covers the body and makes the shell of some mollusks

Tongue-like organ used for getting food off surfaces, such as rocks

Example of a gastropod

Example of a cephalopod

Example of a bivalve

An open circulatory system means that blood runs through vessels to the different organs

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