Molluscs

Question 1

mantle

Answer 1

secretes the shell, multiple shell plates, or small spicules

creates a cavity between itself and visceral mass

cellular layer

Question 2

shell

Answer 2

secreted in various forms by the mantle in molluscs

form as protective covering of sorts

acellular layer

Question 3

pallium

Answer 3

aka mantle

dorsal epidermis

covers visceral mass

Question 4

foot

Answer 4

allows movement of mollusks, sits inside shell

Question 5

radula

Answer 5

scraping organ in mollusks

teeth and tongues have not developed yet!

have serated edges, can use to eventually burrow into another organism

Question 6

operculum

Answer 6

in class Gastropoda

a hardened structure on the foot that is like a shield, closes up shell as needed

Question 7

ctenidia

Answer 7

the name of gills in mollusks, can be used for gas exchange

Question 8

pneumostome

Answer 8

lung adjacent structure, air enters through it into animal lung (air filled mantle cavity)

in Pulmonata that is in Class Gastropoda

Question 9

trochophore larva

Answer 9

beginning stage of development in Mollusks, larva that occurs from fertilization in reproduction