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Echinoderm Review
Test Description: This reviews the basic characteristics shared by all echinoderms.
Instructions: Answer all questions to get your test result.
1) Which of the following is an echinoderm?
A
Coral
B
Worm
C
Sea star (starfish)
D
Sea anemone
2) Which of the following describes the body structure of an echinoderm?
A
Central cavity with one opening
B
Spiny skinned with radial symetry
C
Body has many pores
D
Body with bilateral symetry
3) Which of the following is NOT an echinoderm?
A
Sea Urchin
B
Jellyfish
C
Sand dollar
D
Brittle Star
4) How does a starfish eat?
A
Turns stomach inside out to digest meal
B
Uses its arms
C
Uses tentacles
D
Uses teeth
5) What body structure do sea urchins and sand dollars have in common?
A
Both have many arms
B
Both have polyp body forms
C
Both have calcium carbonate plates and are covered with spines
D
Both have bilateral symetry
6) What do sea cucumbers do when threatened by a predator?
A
They swim away
B
They burrow in the sand
C
They shoot spikes
D
They expel their organs
7) Sea stars can repair themselves by regrowing body parts. What is this called?
A
reproduction
B
regurgitation
C
regeneration
D
respiration
8) Describe an echinoderm's water vascular system.
A
Network of water-filled canals
B
Water sacs
C
Many vacuoles in a row
D
Network of tentacles
9) Which of the following is an echinoderm?
A
Sea Urchin
B
Hydra
C
Clam
D
Octopus
10) Which of the following is an echinoderm?
A
Tick
B
Sand dollar
C
Mite
D
Spider
*select an answer for all questions
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