Chap 21-22

Question 1

Mollusk use a _____ for locomotion

Answer 1

Foot

Question 2

Contains a mollusk’s internal organs

Answer 2

Visceral hump

Question 3

A skin like organ which covers the visceral hump

Answer 3

Mantle

Question 4

Mollusk class which includes snails, slugs, and whelk

Answer 4

Gastropods

Question 5

Mollusk class which includes clam, mussel, oyster, and scallop

Answer 5

Bivalves

Question 6

Mollusk class which includes squid, octopus, cuttlefish, and chambered nautilus

Answer 6

Cephalopods

Question 7

Two-shelled mollusks

Answer 7

Bivalves

Question 8

Hold together the the two shells of a bivalve

Answer 8

Adductor muscles

Question 9

Takes water into the mantle cavity to the gills

Answer 9

Incurrent siphon

Question 10

In mollusks, water passes out through

Answer 10

Excurrent siphon

Question 11

Stomach-footed Mollusks

Answer 11

Gastropods

Question 12

Gastropods which look like snails but lack a shell

Answer 12

Slugs

Question 13

Marine slugs

Answer 13

Nudibranches

Question 14

A snail’s rough, file like organ that scrapes food and carries it like a conveyor belt into the digestive tract

Answer 14

Radula

Question 15

Head-foot Mollusks

Answer 15

Cephalopods

Question 16

The largest invertebrate

Answer 16

The giant squid

Question 17

Largest group of water animals on earth

Answer 17

Mollusks