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lesson 9.3

Vocabulary

QuestionAnswer
mantle a thin layer of tissue unsegmented body tissue that secretes the shell
foot there is a ventral, muscular foot
radula a ribbon of small teeth that is used to feed
chitin a highly resistant carbohydrate also found in other invertebrates
valves in bivalves the body is laterally compressed and enclosed in a shell with two parts
umbo the upper hump near the hinge of each shell
siphon when the clam is buried water is drawn in and out of every mantle cavity through
byssal thread attached them to rocks and other surfaces
biofouling the undesirable accumulation of organisms that settle on submerged structures
Inc sac distract potential predators by emitting a cloud of dark fluid produced by the
pen the shell is reduced to a stiff
crystalline style an enzyme secreting rod in the stomach
open circulatory system blood flows out of vessels into open blood spaces
ganglion local brains clusters if nerve cells located in different part of the body
spermatophore elongated packets of sperm
veliger a planktonic larva that has a tiny shell
Created by: Marco Puma
 

 



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