Echinoderm Review For Quiz
& Dissection
Questions #1
• What kingdom are starfish in?
Question #2
• What phylum are starfish in?
Question #3
• What systems are present in starfish?
Question #4
• What symmetry do starfish have?
Question #5
• What are the two ways in which starfish
reproduce?
Question #6
• What do starfish eat?
Question #7
• Name two other animals in this phylum
besides starfish.
Question #8
• Compare and contrast the water vascular
system to our circulatory system.
Question #9
• Explain the difference between an
exoskeleton and an endoskeleton.
Question #10
•
This disk shaped structure is the opening
for water to come into the starfish.
a.
b.
c.
d.
Tube feet
Mouth
Ampullae
Madreporite
Question #11
•
This structure is used for gas exchange
and excretion as well as for movement.
a.
b.
c.
d.
Ampullae
Tube feet
Mouth
Stomach
Question #12
• This structure produces sperm and eggs.
a. Ray
b. Digestive gland
c. Reproductive organ
d. Eyespots
Question #13
•
This structure produces digestive
enzymes that break down food.
a.
b.
c.
d.
Digestive gland
Radial canal
Mouth
Ampullae
Question #14
•
This structure allows water to move
around the center of the body before it
goes to the rays (arms).
a.
b.
c.
d.
Radial canal
Ampullae
Tube feet
Ring canal
Question #15
•
This structure makes the tube feet open
and close.
a.
b.
c.
d.
Ampullae
Mouth
Pedicellariae
Stomach
Question #16
•
This structure is sometimes pushed out
of the body to break down food.
a.
b.
c.
d.
Stomach
Anus
Mouth
Digestive glands
Question #17
•
This structure runs down each ray (arm)
to move water.
a.
b.
c.
d.
Ring canal
Radial canal
Ampullae
Tube feet
Question #18
• This structure determines light form dark.
a. Mouth
b. Anus
c. Pedicellariae
d. Eyespots
Question #19
•
This structure looks like pinchers and
aids in cleaning the surface of the body.
a.
b.
c.
d.
Ring canal
Radial canal
Ampullae
Pedicellariae
Question #20
• How could you double the population of a
starfish colony?
Question #21
B
A
C
Question #22
E
D
Question #23
F
G
H
Question #24
I
Question #25
J
Answers
1. Animalia
2. Echinoderm
3. Digestive, Reproductive, Nervous, Excretory
4.
5.
6.
7.
Radial
Sexual and regeneration
Worms or clams
Brittle star, sea urchin, sand dollar, sea
cucumber, sea lilies, feather star
8. Compare: The water vascular system
transports food and waste around to the
cells in the body just like our blood does.
Contrast: The water vascular system
uses water to move materials around the
body and humans use blood.
9. Exoskeleton is a hard structured used for
support found on the outside of the body
(like lobsters). An endoskeleton is a hard
structure used for support on the inside
of an animal.
10. D
11. B
12. C
13. A
14. D
15. A
16. A
17. B
18. D
19. D
20. Cut the starfish in half and put them in
the water to regenerate.
21.
A. Arms / Rays
B. Eyespots
C. Madreporite
22.
D. Tube Feet
E. Mouth
23.
F. Ring Canal
G. Radial Canal
H. Ampullae
24.
I. Digestive Gland
25.
J. Reproductive Organ (Gonad)