Question

Why does the lining of the uterus thicken during the first half of the menstrual cycle?

to provide a place for sperm cells to attach
to produce a mature egg cell
to prepare to nurture an embryo
to rid the body of unfertilized egg cells

Answer 1

C

Step-by-step explanation:

A does not make sense because sperm cells attach to the egg, not the uterus itself.

B does not make sense because mature eggs come from the ovaries, not the uterine lining.

D does not make sense because extra unfertilized eggs would have already been discarded during the last period.

C is the best answer because, post-fertilization, the egg buries itself in the uterine lining and receives nutrients while it divides into a blastocyst.