One distinctive feature of all echinoderms:
A) Jointed legs.
B) Gill slits.
C) Endoskeleton.
D) Water vascular system.
E) Bilateral symmetry.
Correct Answer:
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Q16: Animals,all members of the kingdom Animalia,are characterized
Q17: Free-floating cnidarians like jellyfish are referred to
Q18: Which of the following type of cells
Q19: Comb jellies are classified as:
A)Cnidarians.
B)Ctenophores.
C)Platyhelminthes.
D)Sipunculans.
Q20: Polychaete worms show:
A)A body covered with a
Q22: Which of these organisms is most highly
Q23: Beard worms are unique because they lack:
A)Symmetry.
B)A
Q24: A zoea would be a larval form
Q25: Which of the following are not correctly
Q26: The term for changing exoskeletons by crustaceans
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