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More cards in this set
Card 16
Front
What membrane surrounds the mouth?
Back
Card 17
Front
What is the perignathic girdle?
Back
Card 18
Front
What is the Aristotle's lantern?
Back
Card 19
Front
What are the three main functions of the tube feet?
Back
Card 20
Front
What two things do the tubercles consist of?
Back
Card 21
Front
How does the muscle attach to the spine?
Back
Card 22
Front
What is the regular echinoid mode of life?
Back
Card 23
Front
What is a defining characteristic of an irregular echinoid?
Back
Card 24
Front
What shape are irregular echinoids?
Back
Card 25
Front
What does the mouth lack?
Back
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