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Mention External Fertilization Disadvantages. -

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Question

Mention external fertilization disadvantages.

Short Note

Solution 1

Disadvantages of external fertilization:

In external fertilization, eggs have less chances of fertilization. This can lead to the wastage of a large number of eggs produced during the process.

Further, there is an absence of proper parental care to the offspring, which results in a low rate of survival in the progenies.

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Solution 2

Disadvantages of external fertilization:

  1. if occurs only in aquatic medium.
  2. A chance factor is involved requiring synchronous release of gametes nearby and absence of turbulence of water.
  3. There is no protection to young ones. They are vulnerable to a number of predators.
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