Implantation in the endometrium of the uterus occurs about __________ days after fertilization.
a. 7
b. 14
c. 28
d. 35
e. 56
Answer: a
Implantation in the endometrium of the uterus occurs about __________ days after fertilization.
a. 7
b. 14
c. 28
d. 35
e. 56
Answer: a