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Sea star
  • 1. What is another name for sea stars?
A) Seal
B) Seashell
C) Starfish
D) Seahorse
  • 2. How many arms do most sea stars have?
A) 10
B) 6
C) 8
D) 5
  • 3. What do sea stars use to move?
A) Claws
B) Tentacles
C) Tube feet
D) Fins
  • 4. Which ocean are sea stars commonly found in?
A) Pacific
B) Indian
C) Atlantic
D) Arctic
  • 5. What do sea stars primarily prey on?
A) Fish
B) Mollusks
C) Plants
D) Algae
  • 6. Which body shape do sea stars possess?
A) Asymmetry
B) Spiral symmetry
C) Radial symmetry
D) Bilateral symmetry
  • 7. What is the main threat to sea stars in recent years?
A) Pollution
B) Climate change
C) Overfishing
D) Sea star wasting disease
  • 8. Which organ helps sea stars to perform tube feet extension and retraction?
A) Digestive system
B) Nervous system
C) Water vascular system
D) Circulatory system
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