Name: ___________________
_________
1. What are the four groups of Echinoderms?
a. starfish, sand dollars, sea cucumbers, and brittle stars
b. starfish, clams, sea worms, and fish
c. starfish, brittle stars, sea urchins, and sea cucumbers
d. sand dollars, clams, sea cucumbers, and brittle stars
2. What type of skeleton does every echinoderm have?
a. endoskeleton
b. exoskeleton c. external
3. Are Echinoderms invertebrates?
a. all
b. none
c. most
d. some
4. How do starfish move?
a. tube feet b. tentacles
c. eyes
d. mouth
5. What type of joints do brittle stars have?
a. flexible b. stiff
6. What is one of the starfishes' prey?
a. clams
b. seaweed
c. sediment
7. How many teeth-like structures does a sea urchin have?
a. 3
b. 6
c. 4
d. 5
8. How does a sea cucumber obtain food?
a. tentacles
b. tube feet c. teeth
Date:
9. Are all Echinoderms either males or females?
a. yes
b. no
10. Does a larvae look exactly like its adults?
a. yes
b. no
11. BONUS QUESTION (+5 points)