Show:
Molusks
Mollusk Biology
Bivalves
Cephalopods
Gastropods
100
A sheath of tissue surrounding the organs of a mollusk, producing the mollusks shell and performing respiration
What is mantle
100
a circulatory system in which blood flows out of the blood vessels and into the body cavities, where it comes in direct contact with the cells.
What is open circulatory system
100
Name three bivalves
Oyster, scallops, mussels, clams
100
what does cephalopod literally mean
"head" "foot"
100
gastropod literally means
"stomach" "foot"
200
an organ covered with hundreds of small teeth, used for scraping food into the mouths of mollusks
What is radula
200
a circulatory system in which the blood always remains in vessels
What is closed circulatory system
200
Bivalve literally means
"two" "shells"
200
special cells called ________ are used to change color and pattern of skin
chromatophores
200
gastropods are univalves meaning ____
"one" "shell"
300
a plate, with horns that forms a lid over the opening of the shell when the head and foot are pulled inside
What is operculum
300
an individual that can produce both male and female gametes
What is hermaphroditic
300
Shells of bivalves can open and close things to
Abductor muscles
300
squid and cuttlefish have two long _______ in addition to eight arms
tentacles
300
the thick pad that closes a trapdoor over the foot and protects the snails is called ________
operculum
400
Can actually keep the undischarged nematocysts of their prey and incorporate them into their own bodies for their own protection
What is nudibranchs
400
have no external shell
cephalopods
400
This brings water to the gills
the siphon tube
400
Mother octopi usually die after her eggs hatch because ________
she doesn't eat while tending to them
400
rough tongue-like organ 
radula
500
diverse group of mollusks including snails and slugs
gastropod
500
soft-bodied with bilateral symmetry and coiled visceral mass
mollusks
500
the bivalve age can be determined by
the lines on it's shell
500
cephalopods move by _______
jet propulsion
500
uses toxins to kill its prey, has a harpoon like radula which it uses to spear prey
cone snail