What is the placenta?
A) The structure that supplies nutrients to the developing fetus.
B) A collection of thick mucus in the cervix that prevents bacteria from entering the uterus.
C) The chemical in the head of the spermatozoon that breaks down the outer membrane of the ovum to allow for fertilization.
D) A thin,tough,membranous sac that encloses the embryo or fetus.
E) The down covering of hair over a fetus.
Correct Answer:
Verified
Q2: If a fertilized egg had just implanted,we
Q3: Cross-cultural,food aversions during pregnancy serve to protect
Q4: The government of India has recently implemented
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
Q10: From the second through eighth weeks,the developing
Q11: About how long does the ovum live
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