1.

(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.

Answer» (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.


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