From the second through eighth weeks,the developing human is referred to as a(an) :
A) blastocyst.
B) embryo.
C) fetus.
D) amnion.
E) mesoderm.
Correct Answer:
Verified
Q5: The sex of the fetus is determined
Q6: How do identical twins occur?
A)When two sperm
Q7: The idea that something is wrong with
Q8: How many sperm fertilize the egg?
A)one
B)several
C)hundreds
D)thousands
E)millions
Q9: If a couple wants to give birth
Q11: About how long does the ovum live
Q12: The hollow ball of embryonic cells that
Q13: What are pregnancy tests testing for?
A)increased levels
Q14: The country with the highest ratio of
Q15: Which of the following is NOT a
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