1.

Write two major adaptations in animals exhibiting external fertilization.

Answer»

(i) There is a great tendency of synchromization between male and female sexes i.e, they release the mature gamete simultaneously in water. 

(ii) They release a large number of gametes in the surround medium (water) so that there may be greater chances of syngamy i.e., the fusion of male and female gametes.



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