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Zak Zak
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8 years ago
Organ development is most open to exposure from teratogens during the embryonic and fetal periods. Therefore, these can be called ___________________ periods for teratogen exposure.

a. gestational
b. sensitive
c. critical
d. harmful
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The Growing Child

The Growing Child


Edition: 1st
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LeeWilliamsLeeWilliams
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8 years ago
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Zak Author
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#2
8 years ago
You've been so kind and helpful, very awesome.
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#3
8 years ago
This one isn't as straight-forward as it seems! Happy to help Slight Smile
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