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Question

Which adaptation is common in the terrestrial vertebrates but not in the aquatic ones?

A
Internal fertilisation
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B
External fertilisation
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C
Motile gametes
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D
External development
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Solution

The correct option is A Internal fertilisation
Internal fertilisation
  • Fertilisation inside female body
  • Common in terrestrial animals
External fertilisation
  • Fertilisation in surroundings, outside the female body
  • Common in aquatic animals, fertilisation occurs in water

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