Question 1
The __________ produces blood cells until the developing liver, spleen, and bone marrow are mature enough to take over this function.
◦ amnion
◦ chorion
◦ placenta
◦ yolk sac
Question 2
The __________ secretes hormones that prepare the lining of the uterus to receive a fertilized ovum.
◦ ovaries
◦ corpus luteum
◦ fallopian tubes
◦ cervix