Which of the following terms does NOT apply to mollusks?

Which of the following parts of a mollusk's body is used to make its shell -- if it has one?

Class ____ includes squid and octopi.

Which group(s) of mollusks lack a distinct head? (Select all that apply.)

Which group(s) of mollusks is less mobile and more of a filter feeder? (Select all that apply.)

Which group(s) of mollusks have an open circulatory system with hemolymph? (Select all that apply.)

Which group(s) of mollusks usually reproduce with external fertilization? (Select all that apply.)

Which group(s) of mollusks shred their food with a radula? (Select all that apply.)

Which group(s) of mollusks have eyes on their distinct heads? (Select all that apply.)

Which group(s) of mollusks have a foot that is modified into arms and tentacles? (Select all that apply.)

Which group(s) of mollusks have torsion of their internal organs? (Select all that apply.)

Which group(s) of mollusks have a large siphon for expelling water from their mantle cavity? (Select all that apply.)

Which group(s) of mollusks have 3 hearts? (Select all that apply.)

____ are pigment-filled cells that change color.

The ink of a cephalopod is made of ____.

The ____ end of a squid is nearest to its arms and tentacles.

The ____ side of a squid is where you can see the siphon.

Squid have ____.

The main heart of a squid that pumps blood to the tissues of its body is called the ____ heart.

The internal shell of a squid is called a(n) ____.

Waste, ink, and reproductive cells all leave a squid's body through its ____.

Most mollusks use ____ as their respiratory organ.

Which group(s) of mollusks are usually dioecious? (Select all that apply.)

Which group of mollusks has the most complex digestive, nervous, and circulatory systems?