First slide

Classification of Animals

Question

Which of the following migrates from the sea to freshwater, where it spawns and dies within a few days?

Moderate

A

Lamprey
B

Lancelet
C

Rohu
D

Eel

Solution

Petromyzon (lamprey) is marine but migrates for spawning to freshwater (anadromous migration). After spawning, within a few days, they die. Their larvae, after metamorphosis, return to the ocean. The eel exhibits catadromous migration.

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