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Echinoderm
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Echinoderm
Gen. charac.
- 1. All members have a calcareous skeleton.
- 2. Spiny endoskeleton consist of plates
- 3. Unique water-vascular system
- 4. Pentaradial symmetry in adult
- 5. None are parasitic
- 4. Pentaradial symmetry in adult
- 3. Unique water-vascular system
- 2. Spiny endoskeleton consist of plates
- 1. All members have a calcareous skeleton.
Class Asteroidea ( e.g starfish)
- 1. Diversity - common along shorelines n may on rocks - some live in muddy/sandy/coral reef
- 2. Form n F(x) - i. External feature - have a central disc w tapering arms - body flattened n flexible w pigmented n cilated epidermis - mouth in oral (underside) surface - ambulacrum run from mouth to tip of arm - usually have 5/more arm - ambulacral groove bordered by rows of tube feet
- 2. Form n F(x) - i. External feature - have a central disc w tapering arms - body flattened n flexible w pigmented n cilated epidermis - mouth in oral (underside) surface - ambulacrum run from mouth to tip of arm - usually have 5/more arm - ambulacral groove bordered by rows of tube feet
- 1. Diversity - common along shorelines n may on rocks - some live in muddy/sandy/coral reef
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- Mind Map on Echinoderm, created by sally 09 on 14/12/2014.
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- sally 09
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