molluscs Flashcards

1
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A

molluscs are protostomia and diploblastic, scizocholeomate

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2
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2
Q

what are innovations of the molluscs?

A

they have a head foot portion and a visceral mass portion. they evolved a radula. and most importantly they have a mantle, which can produce a protective shell.

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3
Q
A

the head foot portion contain the feeding, cephalic sensory and locomotor organs

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4
Q
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the visceral mass has digestive, ciculatory, reproductive organs

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5
Q
A

the mantle consists of outer mantle epithelium that secreets a shell,
the shell consist of 3 layers, nacreous layer, prismatic layer, on top you have the periostracum

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6
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7
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8
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9
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9
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10
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11
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12
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