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Why do gametes are produced in large num...

Why do gametes are produced in large numbers in organisms exhibit external fertilisation ?

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More wastage of gametes occurs for fertilization .
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Organisms exhibiting external fertilisation

How can we say that fish exhibits external fertilisation

Given below are a few statements related to external fertilisation. Choose the correct statements. (i) The male and female gametes are formed and released simultaneously. (ii) Only a few gametes are released into the medium. (iii) Water is the medium in a majority of organisms exhibiting external fertilisation. (iv) Offspring formed as a result of external fertilisation have better chance of survival than those formed inside an organism.

Mention any two conditions that enhance the chances of syngamy in organisms exhibiting external fertilization.

How are gametes produced in haploid organisms?

Assertion : Algae and fish produce a large number of gametes. Reason : Algae and fish show internal fertilisation.