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11 Cards in this Set
- Front
- Back
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Two defining features? |
Mantle which protects and radula which are the teeth |
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Three layers of mollusc |
Periostratum (outer made of conchiolin), prismatic layer (think made of calcium carbonate and protein, and nacreous layer (inner) |
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WHich layer is secreted constantly? |
nacreous layer |
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What is a chiton |
scrape algae, and hold tightly to rocks |
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Couple of gastropods |
pteropods, nudibranchs, sea hares |
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What's the oldest part of the bivalve shell? |
umbo |
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what do siphons do? |
help with filter feeding |
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What is byssus? |
Tough protein that allows something to hang onto surface |
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which cephalopod has lot's of jet propulsion? |
nautilus |
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How does mating work? |
They die right afterwards |
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What is the arm that transfers sperm in the spermatophore? |
heterocotylus |
