By _____ the eyes begin to form, the torso continues to form, and the heart tissue begins to "flutter" in a primitive heartbeat.
A) 1 week
B) 2 weeks
C) 4 weeks
D) 8 weeks
Correct Answer:
Verified
Q31: What percentage of miscarriages occur even before
Q32: The neural tube, which forms the brain
Q33: The spongy tissue that grows out of
Q34: Which of the following structures connects the
Q35: The umbilical cord contains
A) two veins and
Q37: The first reflexes appear during which of
Q38: The first reflexes to appear are usually
Q39: During weeks _, the first arm and
Q40: During weeks _, the sex organs develop
Q41: The fetal stage occurs between
A) conception and
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