Phylum Mollusca Flashcards
What does Mollusca mean?
Soft bodies
What are the four characteristics of mollusks?
1) Gills to breathe
2) Most have open circulatory system
3) Must remain moist or in water
4) Muscular foot
How many shells do gastropods have?
One or none
What are six examples of gastropods?
1) Snails (escargot)
2) Slugs (garden pest)
3) Sea slugs
4) Conchs
5) Abalones
6) Whelks
How many shells do bivalves have?
Two
Are bivalves edible?
Yes
What are four examples of bivalves?
1) Scallops
2) Clams
3) Mussels
4) Oysters
True or false - Not all cephalopods are predators
False
What kind of circulatory system do cephalopods have?
Closed circulatory systems.
How do cephalopods move?
Jet propulsion
What are three cephalopods?
1) Squid (calamari)
2) Octopus
3) Chambered nautilus
Explain open VS closed circulatory systems.
In closed circulatory systems, the heart pumps blood, which runs through veins or tubes. In open circulatory systems, there are no veins and the heart pumps blood that flows through the body, not in a tube.
Are animals with open circulatory systems typically large or small?
Small.
