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Where do cyclostomes spawn, and what happens to the adults?
ASea; adults survive many years
BFresh water; adults die soon after
CLand; adults return to the sea
DEstuary; adults live on
Answer & Solution
Correct answer: B. Fresh water; adults die soon after
Marine cyclostomes migrate to fresh water to spawn and die within a few days, and larvae return to the ocean after metamorphosis.
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