What is the scientific name of (i) womb, and (ii) birth canal?

Distinguish between a gamete and a zygote.

Fertilisation in humans can occur only once in a month. Why?

The diagram shows female reproductive system. Name the parts labeled A to D.

(a) In which part do the sperms enter?

(b) Which part releases the egg?

(c) In which part does fertilisation take place ?

(d) In which part does the foetus develop?

Why is it an advantage for the testes to be situated in the scrotal sac outside the main body cavity ? Can you think of one disadvantage ?