contestada

A teratogen is
A. none of the above
B. The cause of cystic fibrosis and sickle-cell anemia
C. Another name for a genetic defect
D. Any substance capable of causing birth defects

Respuesta :

Answers: D

Explanation:

harmful substances, called teratogens, which a woman should avoid during pregnancy.  Certain chemicals, medications, social drugs, alcohol, smoking