Which of the following is true regarding the embryonic stage?
A) It is the point of rapid cell division that immediately follows fertilization.
B) It is when the second polar body fuses with the endometrium.
C) It is a stage when miscarriage might occur without the mother knowing she was pregnant.
D) It is the point at which the teratogens have the least amount of effect on development.
Correct Answer:
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Q4: Once a sperm penetrates the oocyte, it
Q5: Fertilization of an egg is said to
Q6: The first stage of human development is
Q7: The lining of a woman's uterus to
Q8: The zygote enters this stage of development
Q10: An embryo receives oxygen and nutrients from
Q11: This part of the womb connects the
Q12: This is the term for the developing
Q13: These harmful agents, sometimes in the form
Q14: Approximately 15 percent of infants are born
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