Taxanomic Classes
Squids and octopuses belong to this class:
Cephalopoda
Do organisms in the Mollusca phylum have a coelem?
Yes
How does reproduction occur among mollusks?
Sexually
What class in the Mollusca phylum does the oyster (Ostreacea) belong to?
Class Bivalvia
Slugs, sea slugs, and snails belong to this class:
Gastropoda
True or False:
All organisms in the mollusca phylum have wings.
False
Molluscs breathe using...
a) Lungs
b) Gills
c) Photosynthesis
b) Gills
What class in the Mollusca phylum does the Limax belong to?
Class Gastropoda
Scallops, clams, and mussels belong to this class:
Bivalvia
What types of symmetry do all organisms in the Mollusca phylum have?
Bilateral symmetry
Name one way that organisms in the Mollusca phylum move around.
-Jet propulsion
-Muscular foot-like structure
-Slide/glide on mucus
What are 3 basic body parts common among the Phylum Mollusca?
A mantle, visceral mass, and muscular foot
What are the 3 classes that most species are found in? (within the Mollusca phylum)
-Gastropoda
-Bivalvia
-Cephalopoda
What is the tongue-like organ at the head of most mollusks that allows them to scrape food off of surfaces?
Radula
How many shells do bivalve organisms in the Mollusca phylum have?
a) zero
b) One
c) Two
c) Two
What class do Cuttlefish (Sepiida) belong to within the Mollusca phylum?
Cephalopoda
How many species are there in Phylum Mollusca?
85,000
What muscles help close the shell of the bivalve?
Adductor muscle
What part of the bivalve shell is the oldest?
Umbo
What is used to expel water forcefully, enabling the squid to propel itself through the sea?
Siphon