Fertilisation in Animals: External vs Internal · Zoology

Which advantage is associated with internal fertilisation?

  1. Production of a very large number of gametes
  2. Less parental investment
  3. Higher survival rate of offspring
  4. Dependence on water bodies
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Correct answer: Higher survival rate of offspring

Internal fertilisation increases the survival rate of offspring by protecting gametes and embryos. This reduces wastage compared to external fertilisation.

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