In placental organisms, the __________of the embryo merges with the endometrial lining of the uterus to form the placenta.
A) amnion
B) chorion
C) allantois
D) yolk sac
E) blastopore
Correct Answer:
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Q8: Birds hatch out of their eggs looking
Q9: The nervous system forms from the
A) endoderm.
B)
Q10: In a reptile egg, which membrane is
Q11: What is differentiation?
A) The process in which
Q12: The metamorphosis of a caterpillar into a
Q14: In a bird egg, the_ provides the
Q15: Human embryos differ from bird embryos in
Q16: One characteristic of animal development is the
Q17: During the embryonic stage, a hollow ball
Q18: When a researcher transplanted the nucleus of
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