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Unformatted text preview: • Key features o Mantle – secrets the shell o Foot – usually for movt o Radula – feeding apparatus • Highly Developed nervous system o Especially the octopus class o Octopus class has largest brain of any invertebrate • 4 classes o Polyplacophora (many plates) Radula to eat algae Chitons o Gastropoda (stomach foot) Radula to eat algae and flesh Some have shells – limpet, snail Some do not – slug o 31/03/2008 09:29:00 ← 31/03/2008 09:29:00 ←...
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- Spring '08
- Annelid, octopus class, Hirudinea Reduced segmentation, setae Earthworms