Which mollusks have a closed circulatory system?Multiple choice question.BivalvesGastropodsCephalopods

What part of a mollusk contains the digestive tract, circulatory organs, excretory organs, and reproductive organs?

Some invertebrates and all vertebrates have a circulatory system.

Select all of the following that are classes of mollusks.Multiple select question.bivalveschitonscrustaceansgastropodscephalopodspolychaetes

Select all that applyIf you wanted to find an animal from a phylum that commonly exemplifies an open circulatory system, you would select a/anMultiple select question.chordate.non-cephalopod mollusk.cephalopod mollusk.cnidarian.arthropod.

The two part shell of bivalve molluscs is closed by ______.