Locomotion and MovementHard

Question

Which are exclusively vivparous ?

Options

A.Bony fishes
B.Cartilagenous fishes
C.Sharks
D.Whales

Solution

Whales are exclusively viviparous.In viviparous animals (majority of mammals including human beings), The zygote develops into a young one inside the body of the female organism. After attainng a certain stage of growth, the young ones are delivered out of the body of the female organism.

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