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Question

(a) What is the life support system of a fetus ?
(b) How long does a human baby take to develop before birth ?
(c) What is the name of the narrow opening between the uterus and the vagina.


Solution

Answer :

(a) The placenta is the life support system of a foetus.
(b) A human baby takes 9 months to develop before birth.
(c) The cervix is the narrow opening between the uterus and the vagina.

Biology
Science for Tenth Class - Part III - Biology
Standard X

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