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Biology, 03.02.2020 04:04 gemouljr

In early embryonic development, the cells start to differentiate based on

their location, or layer

amniotic fluid produced by the placenta

hormones secreted by the uterus

chemicals secreted by the blastocyst

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Answers: 2

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In early embryonic development, the cells start to differentiate based on

their locatio...
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