Question

Differentiate between internal fertilization and external fertilization. What type of fertilization takes place in
(a) frog, and (b) fox ?

Answer 1

Answer:

●The process of the internal fertilization takes place inside the female body, and the offspring develops there only, while in external fertilization this process happens outside the body that is in the external aquatic environment. ... There are no such types of external fertilization.

●frog -external fertilization

●fog-internal fertilization

Answer 2

Internal fertilisation:

• When fusion of male and female gamete takes place inside body of mother, it is called as internal fertilisation.
• The number of gametes produced is less and male gamete is deposited in body of female.
• This type of fertilisation takes place mostly in mammals.

External fertilisation:

• When fusion of male and female gamete takes place outside body of mother, it is called as external fertilisation.
• The number of gamete produced is large and are released in environment.
• This type of fertilisation takes place mostly in reptiles.

(a) The type of fertilisation takes place in frog is internal fertilisation.

(b) The type of fertilisation takes place in fox is external fertilisation.