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4 Cards in this Set
- Front
- Back
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What is the advantage to torsion in gastropods |
After torsion the osphradium is in the anterior end- used to sample water as it enters-- before torsion is tested water as it was leaving |
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What is the difference between gastropods with and without perforated shells? |
Perforated shells = 2 ctenidia |
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What are the only success fun terrestrial gastropods? |
Pulmonates- pneumostome, internal gas change, conversion of ammonium to uric acid, aestivation (metabolic slowdown, tolerance of desiccation, rapid rehydration) |
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How do bivalves that live in sand breath? |
Using long tubules- siphons (inhalant/ exhalent) this gives a larger posterior end to their body) |
