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- Created by: naomi
- Created on: 05-01-14 15:21
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Clues
- Are echinoids invertebrates or vertebrates? (13)
- How do irregular echinoids feed? (6, 7)
- Name the mode of life of a regular echinoid (9)
- Name the mode of life of an irregular echinoid (8)
- Name the type of symmetry for an irregular echinoid (9, 8)
- What is the function of the spines? (10)
- What sape is the test on an irregular echinoid? (5, 6, 4)
- When did echinoids become extinct? (4, 5)
- Where is the peristome? (6, 3, 5)
- Which is bigger, the ambulacral plate or the interambulacral plate? (15)
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