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Q.

Water is considered to be the medium for fertilization in frogs.

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a

True

b

False

answer is A.

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Detailed Solution

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  • During the spring or rainy season, frogs and toads move to ponds and slow-flowing streams. When the male and female come together in water, the female lays hundreds of eggs. As the eggs are laid, the male deposits sperms over them.
  • Each sperm swims randomly in water with the help of its long tail. The sperms come in contact with the eggs to fuse, this process is fertilization.
  • The type of fertilization in which the fusion of a male and a female gamete takes place outside the body of the female is called external fertilization.
  • External fertilisation is very common in aquatic animals such as fish, starfish, etc.
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Water is considered to be the medium for fertilization in frogs.