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elena-s [515]
3 years ago
6

The images show the stages of human development. At which stage does cell differentiation start?

Health
1 answer:
EastWind [94]3 years ago
4 0

Answer:

fertilization of the female egg

Explanation:

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How is blood in the hepatic venule different from the blood in the hepatic vein , in terms of amount of O2 versus CO2 ? The amou
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Explanation:

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More CO₂                                   More O₂

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