Development progresses_________ .
A) from the midline lateral to the body walls, then proximal to distal on the limbs
B) in rostral to caudal and proximal to distal directions
C) simultaneously upwards, outwards, and downwards from the trunk
D) from the head and the distal limbs towards the trunk
Correct Answer:
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Q1: This structure surrounds the early embryo and
Q7: Name the blood vessel that carries oxygen-
Q8: The function of cleavage is to _.
A)form
Q9: What is true of the structure of
Q10: Fertilization_ .
A)is the final step to occur
Q11: This cord attaches the embryo to the
Q14: The_ is the final product of cleavage.
A)trophoblast
B)blastocyst
C)gastrula
D)zygote
Q15: What organs appear very early in development?
A)brain
Q16: The three primary germ layers develop during
Q17: The human blastocyst consists of two populations
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