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- 1. Multiple Choice
What does the term echinoderm mean?
tube feet
stomach foot
spiny skin
- 2. Multiple Choice
What type of symmetry do adult echinoderms exhibit?
Asymmetry
Pentaradial symmetry
Bilateral symmetry
- 3. Multiple Choice
Echinoderms have an internal skeleton and a system of fluid-filled tubes called a(n)...
water vascular system
nervous system
notochord
- 4. Multiple Choice
What type of skeleton do echinoderms have?
Exoskeleton
Hydrostatic skeleton
Endoskeleton
- 5. Multiple Choice
Echinoderms have no head or brain.
True
False
- 6. Multiple Choice
The process by which some organisms replace or restore lost or amputated body parts.
tube feet
fission
regeneration
- 7. Multiple Choice
One of the numerous external, fluid-filled muscular tubes of an echinoderm, such as a starfish or sea urchin, serving as organs of locomotion, food handling, and respiration.
tube feet
regeneration
fission
- 8. Multiple Choice
A class of echinoderms that comprises the sea cucumbers.
holothuroidia
asteroidia
echinoidia
- 9. Multiple Choice
The class that belongs to the phylum Echinodermata. Ex. the sand dollars, and sea urchins.
holothuroidia
asteroidia
echinoidia
- 10. Multiple Choice
One of the largest and most familiar classes within the Phylum Echinodermata. The animals, commonly known as sea stars or starfishes.
holothuroidia
asteroidia
echinoidia
- 11. Multiple Choice
What is the primary component of an echinoderm's skeleton?
Spicules of chitin plates
Ossicles of chitin plates
Ossicles of calcium carbonate
- 12. Multiple Choice
Sea urchins have got spines ...
To harm people that are walking around
For hunting prey
To protect themselves and to move their bodies
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