What is the advantage of paired appendages?
A) They provide internal support for the animal.
B) They improve mobility.
C) They protect the nerve cord.
D) They increase the metabolic rate, making animals endothermic.
E) They improve the sensory ability.
Correct Answer:
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Q17: In vertebrates, the analogous structure to the
Q18: What is the function of the vertebral
Q19: Which of the following is present in
Q20: What characteristic of hagfishes differentiates them from
Q21: Parasitic lampreys have
A) radial proportions.
B) sucker-like mouths
Q23: Chondrichthyes includes
A) lampreys.
B) whales.
C) all fishes.
D) sharks.
E)
Q24: A lamprey is a(n)
A) amphibian.
B) bony fish.
C)
Q25: Lamprey populations introduced into the Great Lakes
Q26: The characteristic that separates cartilaginous fishes from
Q27: Lampreys have reduced the size of commercial
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