Multiple Choice
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:
Verified
Correct Answer:
Verified
Q13: Once fertilization has occurred, the activities of
Q14: In the human, this germ cell layer
Q15: The trophoblast cells of the blastocyst form
Q16: In humans, the yolk sac_ .<br>A)forms the
Q17: This structure surrounds the early embryo and
Q17: Fertilization_ .<br>A)is the final step to occur
Q18: What organs appear very early in development?<br>A)brain
Q20: Chorionic villi look like_ .<br>A)rings of chorionic
Q21: What is true of the structure of
Q22: The_ is the final product of cleavage.<br>A)trophoblast<br>B)blastocyst<br>C)gastrula<br>D)zygote