7. Sharks, skates, and rays are also called ______ fishes.
(a) Jawless
(b) Bony
(c) Cartilaginous
(d) Freshwater
(c) Cartilaginous
Answer & Explanation
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8. Turtles are
(a) Arthropods
(b) Pisces
(c) Reptiles
(d) Molluscs
(c) Reptiles
Answer & Explanation
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9. The clam nervous system is composed of
(a) labial palps
(b) one pair of ganglia
(c) two pairs of ganglia
(d) three pairs of ganglia
(d) three pairs of ganglia
Answer & Explanation
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