Teratogens are substances that
A) stimulate embryonic growth.
B) cause congenital malformations.
C) protect against infections.
D) prevent accumulation of cholesterol.
E) stimulate fetal growth.
Correct Answer:
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Q3: Muscle contractions of the uterine wall and
Q4: The foramen ovale is an opening that
Q5: Dizygotic twins result from the combination of
A)
Q6: During the early stages of pregnancy,the hormone
Q7: The external reproductive organs can be distinguished
Q9: The fetal stage of development begins at
Q10: Development is a continuous process during which
Q11: The postnatal period extends from
A) the fertilized
Q12: Drugs ingested by a pregnant woman most
Q13: The combining of a secondary oocyte and
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