Echinodermata Class: Echinoidea Flashcards
1
Q
What does Echinoidea mean?
A
Spiny form
2
Q
What organisms are in Echinoidea?
A
Sea urchins and sand dollars
3
Q
Two functions of spines in echinoids?
A
- movement or locomotion
2.defense (spiky spine)
4
Q
Function of Aristotle’s lantern?
A
chewing apparatus that cuts food into small pieces for ingestion