Question

which statement best defines pregnancy?
a. the period of about 40 weeks when a developing embryo or fetus is in the uterus
b. the joining of an egg and a sperm
c. the process by which the uterus contracts to push the fetus out of the womans body through the vagina
d. a fertilized egg that has begun cell division

Explanation:

Pregnancy is the time - period during which a developing embryo or fetus is in the uterus, typically lasting about 40 weeks. Option B is fertilization, option C is childbirth, and option D is an early - stage conceptus.

Answer:

A. The period of about 40 weeks when a developing embryo or fetus is in the uterus