Fertilization at conception is when the genetic material of the ovum and sperm combine.
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Q3: During the embryonic period,growth occurs through mitosis
Q13: Cleavage
A)is cell division with no increase in
Q17: The chorion is
A)the first site of blood
Q17: Every cell of the morula and inner
Q19: Gastrulation is an example of morphogenesis.
Q20: The union of ovum and sperm during
Q21: The yolk sac
A)is the first site of
Q22: List the embryonic membranes and explain their
Q24: Which of the following is NOT a
Q32: A typical pregnancy test detects the presence
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