The three layers of cells formed by the end of the first month of pregnancy are referred to as:
A) Interior, middle, exterior
B) Zygote, embryo, fetal
C) Nuclei, amnion, placenta
D) Endoderm, mesoderm, ectoderm
E) The "stuff of life"
Correct Answer:
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Q6: The zygote lives off _ _during the
Q7: After fertilization, the two cell nuclei containing
Q8: The zygote splits into two cells through
Q9: Cell division during pregnancy is called:
A) Osmosis
B)
Q10: The first 2 weeks after the egg
Q12: Ectoderm is to _, as mesoderm is
Q13: The ectoderm is responsible for development of
Q14: Ectoderm is to mesoderm as:
A) Skeletal system
Q15: The risk of congenital malformations is greatest
Q16: The fetal heartbeat begins by _ of
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