Echinodermata Class: Echinoidea Flashcards

1
Q

What does Echinoidea mean?

A

Spiny form

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2
Q

What organisms are in Echinoidea?

A

Sea urchins and sand dollars

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3
Q

Two functions of spines in echinoids?

A
  1. movement or locomotion
    2.defense (spiky spine)
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4
Q

Function of Aristotle’s lantern?

A

chewing apparatus that cuts food into small pieces for ingestion

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