A key derived character of sharks and rays that distinguishes them from ray-finned fishes is
A) jaws and a swim bladder.
B) vertebrae.
C) calcified (hard) bones.
D) a skeleton made of cartilage
Correct Answer:
Verified
Q7: Which adaptations allowed reptiles to complete their
Q8: The vertebrate group that describes all jawed
Q9: The key derived character of the lobe-finned
Q10: Lampreys differ from fishes in that lampreys
A)
Q11: Craniates are chordates that all possess
A) a
Q13: Which is characteristic of all vertebrates?
A) a
Q14: Which animals are ectothermic?
A) frogs and mammals
B)
Q15: Which statement best describes the current scientific
Q16: By far the largest number of extant
Q17: Amphibians were diverse and abundant in the
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