Difference between direct and indirect development
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Direct development
Indirect development
It is a type of development in which an embryo develops into a mature individual without involving a larval stage.
1.
It is a type of development that involves a sexually-immature larval stage, having different food requirements than adults.
Metamorphosis is absent.
2.
Metamorphosis involving development of larva to a sexually-mature adult is present.
It occurs in fishes, reptiles, birds, and mammals.
3.
It occurs in most of the invertebrates and amphibians.
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Answer:
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.
animal from infancy to maturity. 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. Animals that undergo indirect development lay numerous eggs.
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