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SAT II BIOLOGY > Mollusks > Flashcards

Flashcards in Mollusks Deck (8)
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1

Mollusks

Squids, Octopuses, Slugs, Clams, Snails

2

Body plan

Soft body protected by a hard calcium-containing shell

3

Circulatory system

-Open circulatory system with blood-filled spaces called hemocoels/sinuses

4

Hemocoels

-Sinuses
-Body cavities for exchange for nutrients and wastes

5

3 Distinct Body zones that all mollusks share?

-Bilateral Symmetry
1.Head-foot
2.Visceral Mass
3. Mantle

6

Head-foot

Contains both sensory and motor organs

7

Visceral mass

COntains organs of digestion, excretion, reproduction

8

Mantle

A specialized tissue that surrounds the visceral mass and secretes the shell