(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 ?

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Solution

Answer :
(a) A human female produces one egg a month through the process of ovulation therefore, fertilisation can occur once in a month.
(b) The scientific name of (i) womb is uterus and (ii) birth canal is vagina.

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How does fertilisation take place? Fertilisation occurs once in a month. Comment.

In case of test tube baby, fertilisation occurs inside the womb.

(a) State whether the following statements are TRUE (T) or FALSE (F) :

(i) Fertilisation occurs in vagina. (T/F)

(ii) Uterus is also known as birth canal. (T/F)

(iii) Nutrition and oxygen diffuse from the mother's blood into the foetus's blood through amminon. (T/F)

(b) Rewrite any two of the wrong statements by correcting only one word either at the beginning or at the end of the sentence.

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