Multiple Choice
In mammals, the chorion and the trophoblast cells interact with the maternal uterus to form a(n) _______, which provides the embryo with nutrients and gas exchange.
A) umbilicus
B) amniotic sac
C) placenta
D) yolk sac
E) allantois
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q32: The major divisions of the brain develop
Q33: The large amount of yolk in birds'
Q34: Gene duplications during vertebrate evolution have led
Q35: Gas exchange and waste removal for a
Q36: The movement of bottle cells eventually leads
Q38: Exposure to cigarette smoke or alcohol is
Q39: The region of the frog egg that
Q40: Which of the following statements about mammalian
Q41: The segmented characteristic of human embryonic development
Q42: Invagination of the sea urchin blastula<br>A) is