gasxchg - Mechanisms: a) Book lungs b) Branchiae c)...

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Biol 215 Gas Exchange Phylum (Class) Mechanism Notes Tracheophyta Annelida Mollusca Arthropoda Echinodermata Chordata Why did we start animals at Annelids and not Porifera?
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Unformatted text preview: Mechanisms: a) Book lungs b) Branchiae c) Diffusion d) External gills e) Internal gills f) Lungs g) Tracheids...
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This document was uploaded on 03/18/2010.

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