Answer:
Just as chromosomal abnormalities cause the majority of miscarriages, certain chromosomal problems and birth defects can increase the risk that a baby will be stillborn. ... Chromosomal abnormalities are usually determined at conception, but birth defects can be caused by environmental influences during pregnancy.
Explanation:
D. The incentive approach and then the drive-reduction approach
D. Eat lots of fresh shellfish. This is how a person with lactose intolerance can obtain dietary calcium.