Question

differentiate the following
a)external fertilization and internal fertilization
b)gametes and zygote​

Answer 1

Explanation:

external fertilization is the process of fusion of gametes outside the body of the organism's whereas internal fertilization is the process of fusion of gametes within the body of the organism.

in external fertilization, there is no assurance for zygote formation whereas in internal fertilization there is assured zygote formation.