Multiple Choice
The yolk sac
A) produces blood cells until the developing liver, spleen, and bone marrow are mature enough to take over this function.
B) forms a membrane that encloses the developing organism.
C) helps keep the temperature of the prenatal world constant.
D) provides a cushion against any jolts caused by the mother's movement.
Correct Answer:
Verified
Correct Answer:
Verified
Q60: Explain the importance of folic acid supplements
Q61: Using _, researchers hope to correct genetic
Q62: A zygote that separates into two clusters
Q63: During the period of the zygote, the
Q64: Which of the following statements is true
Q66: During the period of the fetus,<br>A) neurons
Q67: After the industrial revolution, childbirth in Western
Q68: Heritability estimates<br>A) reveal that genetic factors are
Q69: _ is an example of incomplete dominance.<br>A)
Q70: Betty was born with deformities of the