Mind map
Echidnoderms
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Echidnoderms
Marine
Origins unclear
Exoskeleton of calcium carbonate
- - tightly or loosely joined
- ossicles
- covered by epidermis
symmetry
- Pentaradia - adult
- bilateral - larvae
All organ systems from centre
Nervous system
- nerve ring with barnches - no centralisation = no brain
5 classes
Water vascular system
- radially organised
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- Mind Map on Echidnoderms, created by Georgia Droudis on 19/06/2018.
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- Georgia Droudis
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