In the human,the function of the yolk sac is to provide nutrients to the embryo.
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Q3: The expulsion of seminal fluid from the
Q4: The postnatal period begins at birth and
Q5: Once the zygote is formed,it immediately begins
Q6: Both spermatogonia and oogonia are diploid cells.
Q7: A major function of amniotic fluid is
Q9: The placenta secretes human chorionic gonadotropin to
Q10: The fertilized ovum,or zygote,is genetically complete.
Q11: The prenatal period begins at conception and
Q12: The daughter cells formed by meiotic division
Q13: Experiments have shown that the ovum actually
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