Lamprey populations introduced into the Great Lakes have grown dramatically. Why?
A) A fish species that they naturally prey upon has recently been introduced into the Great Lakes.
B) Lamprey stocking programs have been highly effective.
C) Competitive species have driven them from the ocean.
D) They have no natural predators in these waters.
E) Fishers have intentionally introduced them with the hope of farming them for ʺeel skin.ʺ
Correct Answer:
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Q20: What characteristic of hagfishes differentiates them from
Q21: Parasitic lampreys have
A) radial proportions.
B) sucker-like mouths
Q22: What is the advantage of paired appendages?
A)
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)
Q26: The characteristic that separates cartilaginous fishes from
Q27: Lampreys have reduced the size of commercial
Q28: Which were the first tetrapods to move
Q29: Fins composed of a web of skin
Q30: Cartilaginous fishes differ from lampreys because they
A)
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