The heart of an embryo starts to pump blood by the ________.
A) second week of pregnancy
B) fifth week of pregnancy
C) fourth week of pregnancy
D) seventh week of pregnancy
Correct Answer:
Verified
Q18: Fertilization is considered complete when _.
A) the
Q19: Paula is pregnant. Her last menstrual period
Q20: Most sperm are viable in the female
Q21: During the _ trimester, a pregnant woman
Q22: Which of the following is typical among
Q24: Which of the following is NOT a
Q25: Which trimester of pregnancy tends to be
Q26: A full-term pregnancy lasts _.
A) 30 weeks
B)
Q27: Nausea and vomiting often occur during the
Q28: Natalia is in the third trimester of
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