Question

What type of fertilisation takes place in the following?

(a) Cow

(b) Frog

(c) Humans

(d) Fish

(e) Hen

Answer 1

Internal fertilization is the process when the syngamy (union of male and female gamete) occurs inside the female body after insemination using copulation. In contrast, External fertilization is the syngamy outside the female body, that is in the outer environment especially in water bodies.

(a) Cow - internal fertilization
(b) Frog - external fertilization
(c) Humans - internal fertilization
(d) Fish - external fertilization
(e) Hen - internal fertilization