2.Human Reproduction
normal

The first sign of the growing foetus may be noticed by listening to the heart sound carefully through the stethoscope. Embryo's heart is formed _________.

Animal $\quad$ Gestation period

A

Dog $60$ $\quad$ - $65$ days

B

Elephant $607$ $\quad$ - $641$ days

C

Cat $52$ - $65$ days

D

Cow $330$ - $345$ days

Solution

Cow’s gestation period = $279\; to \;292$ days.

Standard 12
Biology

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