1.

(a) Fertilisation in humans can occur only once in a month. Why ?(b) What is the scientific name of (i) womb, and (ii) birth canal ?

Answer»

(a) Fertilisation in humans can occur only once in a month because ovulation takes place once  every month i.e. an egg is released once every month by ovary.  

(b)  (i) Uterus.

(ii) Vagina.



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