Mollusk make-up test

Bivalve means...

Characteristics of a mollusk:

(check all that apply)

• soft bodied

• bilateral symmetry

• vertebrate

• radial symmetry only

Most mollusks have an external or internal ...

The muscle that also acts as a hinge that keeps the two pieces of shell together or allows it to open is called

• calcium carbonate

• the mantle

• the adductor

• the beak

"Glands in the mantle that secrete calcium carbonate"

What is being described in the above statement?

• How the adductor muscles are made?

• How the shell is made?

• How a clam digests food?

• How a clam breathes?

What do bivalves use siphon tubes for?

(name two)

The incurrent siphon, microscopic cilia, and gills are all a part of what process?

What kind of circulatory system does a bivalve have?

• open circulatory system

• closed circulatory system

How do mussels attach to rocks?

• mucus

• microscopic cilia

• adductor muscle

• bissel threads

What is the excurrent siphon used for?

• food waste

• food intake

• oxygen intake

• all of the above