Echinodermata Class: Holothuroidea Flashcards
1
Q
What does Holothuroidea mean?
A
Cucumber form
2
Q
What organism is in Holothuroidea?
A
Sea cucumbers
3
Q
What are the differences between Asteroids and sea cucumbers
A
Sea cucumbers: no arms, no pedicellariae, no protruding spines
Asteroids: five arms, multiple pedicellariae, and fixed spine that projects from skeleton
4
Q
What is the locomotion of sea cucumbers?
A
They ululate their body from side to side to swim and contract their body wall muscles to move
