Teratogens are
a. additives that may adversely affect the course of a pregnancy.
b. substances known to cause malformations in the unborn fetus.
c. hormones known to cause malformations in the unborn fetus.
d. carcinogens that may increase the risk of cancer in the fetus.
B
A teratogen is an agent that is capable of producing a malformation or a defect in the unborn fe-tus. They may include additives or hormones. Teratogens are not necessarily carcinogenic.
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