A research team finds that an experimental drug causes problems for prenatal development,but only if it is given within the first 20 days of pregnancy.Researchers are worried that this will most likely affect
A) heart development.
B) the blastocyst.
C) the length of gestation.
D) the baby's birth weight.

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The Answer of A research team finds that an experimental drug causes problems for prenatal development,but only if it is given within the first 20 days of pregnancy.Researchers are worried that this will most likely affect
A) heart development.
B) the blastocyst.
C) the length of gestation.
D) the baby's birth weight.

A Research Team Finds That an Experimental Drug Causes Problems