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In early embryonic development the cells start to differentiate based on.... a. hormones secreted by the uterus b. amniotic fluid produced by the placenta c. their location, or layer d. chemicals secreted
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May 21, 2016
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In early embryonic development the cells start to differentiate based on....
a. hormones secreted by the uterus
b. amniotic fluid produced by the placenta
c. their location, or layer
d. chemicals secreted by the blastocyst
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Answer: A
Step-by-step explanation:
Jerry Hicks
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May 27, 2016
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Jerry Hicks
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