The external reproductive organs can be distinguished by the ________ week of development
A) first
B) fifth
C) eighth
D) twelfth
E) fifteenth
Correct Answer:
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Q2: Blood rich in oxygen and nutrients is
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
Q8: Teratogens are substances that
A) stimulate embryonic growth.
B)
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
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