Question

animals exhibiting external fertilisation produce a large number of gametes. pick the appropriate reason from the following

(a)the animals are small in size and need to produce more offspring

(b)food is available in plenty in water

(c)to ensure a better chance of fertilisation

(d)water promotes production of a large number of gametes​

Answer 1

Explanation:

As animal releases gametes in the external environment, there are the minimum chances of fertilisation and thus, large number of male gametes are produced to ensure better chances of fertilisation.

The success rate of fertilisation is very low.

Answer 2

Answer:

c) to ensure a better chance of fertilisation.

Explanation:

The external fertilisation is the process of fusion of male and female gametes outside the body or in outer environment. As animal releases gametes in the external environment, there are the minimum chances of fertilisation and thus, large number of male gametes are produced to ensure better chances of fertilisation.

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