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Question
Which of the following animals does not undergo metamorphosis?
Which of the following animals does not undergo metamorphosis?
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Solution
The correct option is C Earthworm
Direct development refers to the process of development in which an animal is born in a smaller version of its adult form. There is no major transition in the form of the animal from infancy to maturity. Earthworm does not undergo metamorphosis.
With indirect development, an animal's birth form is very different from the adult form. The embryo hatches from the egg in a larval form. The larva undergoes a drastic metamorphosis in order to achieve its adult stage.
Some ctenophores, echinoderms, insects and amphibians undergo indirect development: tunicate, starfish, moth, frogs.
Direct development refers to the process of development in which an animal is born in a smaller version of its adult form. There is no major transition in the form of the animal from infancy to maturity. Earthworm does not undergo metamorphosis.
With indirect development, an animal's birth form is very different from the adult form. The embryo hatches from the egg in a larval form. The larva undergoes a drastic metamorphosis in order to achieve its adult stage.
Some ctenophores, echinoderms, insects and amphibians undergo indirect development: tunicate, starfish, moth, frogs.
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