General
Cephalopods
Gastropods
Bivalves
100
Sea slugs, squid, snails, and scallops
What are molluscs?
100
6 month to 2 years
What is a cephalopod's lifespan?
100
80,000 living species
How many living species are there?
100
no
Do bivalves have heads?
200
the phylum comprising the mollusks
What is Mollusca?
200
This organ stops beating when the octopus swims.
What is an octopus heart?
200
snails and slugs
What are gastropods?
200
a small group of interconnected nerve cells
What is ganglia?
300
some molluscs have bilateral symmetry
Are molluscs bilateral?
300
The only present day Cephalopods with external shells
What is a nautilus?
300
some gastropods live in shells
How many gastropods live in shells?
300
Mussel, Scallop, Clam
What are the 3 bivalves?
400
Mollusks are vertebrates. They have a backbone.
Are molluscs vertebrates?
400
The color of deep ocean octopuses copper based blood
What is blue blood?
400
snails live inside shells
Do snails live inside shells?
400
Bivalves range in size from about one millimetre (0.04 inch) in length to the giant clam
How big are bivalves?
500
free-swimming larval stage of many aquatic mollusks
What is trochophore?
500
The earliest known ancestor of today's squid
What is Kimberella?
500
snails hide in shells to protect themselves from predators
Do snails hide in shells to protect them self from predators
500
most species the respiratory gills have become modified into organs of filtration called ctenidia
How do they breathe?
M
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