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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16/10/2021 11:59 am

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BidishaKashayap1333

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(a) What is the life support system of a fetus?

(b) How long does a human baby take to develop before birth?

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16/10/2021 11:59 am

Mayank1444

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(a) Placenta.

(b) About 9 months.

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