Question

(b) Why do testes in mammals descend into scrotum?

Answer 1

answer:: Sperms can only be produced when testis is descended in thescrotum. testes in mammals descend into scrotum becausetestes produces the male gamates which is sperms and for the production of these male gamates a certain temperature is needed.

Answer 2

testis is decent into scrotum because it provides 2 degree lower temperature then the body temperature for the production of sperms