JIPMER2010BotanyAnimal Kingdom

Which of the following have notochord throughout life?

Options

ABirds
BFish
CSnake
DAmphioxus

Correct answer

D. Amphioxus

Step-by-step solution

Notochord is present in any stage of life of a chordate. It is replaced by vertebral column in vertebrates. Notochord is present throughout life in members of subphylum Cephalochordata, eg, Amphioxus. In birds, fishes and snakes, notochord is replaced by vertebral column.

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