Multiple Choice
The primary site of the exchange of nutrients,gases,and waste between the pregnant female mammal and the fetus is the
A) blood islands.
B) umbilical cord.
C) yolk sac.
D) placenta.
E) amnion.
Correct Answer:

Verified
Correct Answer:
Verified
Q36: The function of the corpus luteum is
Q37: The female hormone _ stimulates uterine contractions
Q38: A high-protein fluid secreted from the mother's
Q39: In humans,the growing baby,from the prenatal stage
Q40: Females that are _ form eggs that
Q41: Male sex hormones are collectively called the<br>A)prostaglandins.<br>B)androgens.<br>C)spermatogens.<br>D)testiculars.<br>E)estrogens.
Q42: Gonadotropin-releasing-hormone (GnRH)is produced in the<br>A)ovarian follicle.<br>B)corpus luteum.<br>C)hypothalamus.<br>D)pituitary.<br>E)uterine
Q43: A _ developmental stage is a solid
Q45: Which of the following is NOT an
Q46: Which of the following does NOT apply