A typical pregnancy test detects the presence of
A) fetal hemoglobin.
B) estrogen.
C) HCG.
D) a corpus luteum.
Correct Answer:
Verified
Q27: From which primary germ layer does the
Q28: Which is the last stage in pre-embryonic
Q29: Which of the following is NOT a
Q30: The yolk sac
A)is the first site of
Q31: Identical twins involve _ egg(s)and _ sperm.
A)two;two
B)one;one
C)two;one
D)one;two
Q33: What important event does NOT occur in
Q34: From which primary germ layer does the
Q35: The pre-embryonic structure created by cleavage is
Q36: From which primary germ layer do both
Q37: Gestation
A)is the time from fertilization to embryo
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