Why do gametes produced in large numbers in organisms exhibit external fertilization?

Why do organism reproduce ?

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

Why transition elements form a large number of alloys ?

Why is gut mucosa with large number of goblet cells?

Why do organisms need water ?