Multiple Choice
Chorionic villi look like_________ .
A) rings of chorionic canals in the uterine wall
B) fingers stuck into the uterine wall
C) feathery extensions of the chorion in the uterine wall
D) blood- filled channels in the uterine wall
Correct Answer:

Verified
Correct Answer:
Verified
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Q15: The trophoblast cells of the blastocyst form
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Q17: This structure surrounds the early embryo and
Q17: Fertilization_ .<br>A)is the final step to occur
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Q21: What is true of the structure of
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Q23: Development progresses_ .<br>A)from the midline lateral to