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The Endowment for Human Development
The Endowment for Human Development
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Heart and Circulatory System


3 weeks

From The Biology of Prenatal Development.Buy Now

Script: Kwaram da maikacin jini ya taho (numa) daga cikin jakar kwai, ne za a ga jijiyar jini a tsakanin amfrayo duka, kuma za a ga zuciya.

A lokacin daye ne, zuciyar mai sauri girma zai cire kansa zuwa gidam daban wanda zai fara girma.

Zuciyar din zai fara mici da mako uku da kwana daya bayan hadi.

Sistem sakulasan ne sistem na daya daga sauransu, shi kuma ne tarowa ogan, masu aiki guda.

All ages referenced to fertilization, not last menstrual period.
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