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4
|
An outer skeleton.
|
5
|
A chemical substance produced by leeches.
|
6
|
A rasping tongue characteristic of gastropods.
|
7
|
A repeating body unit found in earthworms and tapeworms.
|
8
|
Head foot.
|
9
|
Stomach foot.
|
10
|
A tissue that secretes shell material.
|
|
|
|
|
1
|
A two part tube structure used by Bivalves to bring fresh water into their shells.
|
2
|
Tissues used for gas exchange in aquatic animals.
|
3
|
Latin for meaning many teeth.
|
4
|
An inner skeleton.
|
|
|