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Vocabb

TermDefinition
Mantle A thin layer of tissue that secretes the shell.
Radula A ribbon of small teeth that is used to feed.
Foot Is the ventral, muscular locomotory structure.
Chitin A highly resistant carbohydrate also found in other invertebrates.
Valves A shell with two parts
Umbo The upper hump near the hinge of each shell, is the oldest part of the shell.
Biofouling The undesirable accumulation of organisms that settle on the bottoms of boats, pilings, and other submerged structures.
Ink sac They can distract potential predators by emitting a cloud of dark fluid produced by it.
Pen This shell is reduced to a stiff shell embedded in the upper surface of the mantle.
Crystalline style An enzyme-secreting rod in the stomach.
Open circulatory system Blood flows out of vessels into open spaces.
Ganglia Clusters of nerve cells located in different parts of the body
Spermatophores A packet of sperm
Veliger A planktonic larva that has a tiny shell .
Siphons A tube where water is drawn out of the mantle cavity through it.
Byssal threads Mussels use this for attachment.
Created by: Noaht1516
 

 



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