Answer the following statement(s) true (T) or false (F)
1. The embryonic stage extends from day 16 through the end of week 8.
2. The chorion forms the fetal part of the placenta.
3. The placenta begins to form after week 8.
4. Teratogens usually do not cause congenital anomalies.
1. True
2. True
3. False
4. False
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Fill in the blank(s) with the appropriate word(s).
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