Question

part a - lo 1, explain the process of conception, and describe how the effectiveness of contraception is measured
contraception, if used correctly, is intended to prevent conception. conception is when a sperm successfully fertilizes an egg. to better appreciate how contraception or birth control works, it is helpful to know about the process of fertilization. from the list below, choose the statement that correctly describes one of the conditions necessary for conception to occur.
the sperm must have access to the egg by traveling through the vagina and through the cervical opening only, since most fertilization occurs near the cervical opening of the uterus.
a viable sperm must reach the fallopian tube and fertilize the egg within 12 hours or it will die.
a viable sperm must reach the fallopian tube, they usually survive 48 to 72 hours, but can last for up to a week.
a viable egg must be available to be fertilized; eggs remain viable for up to 72 hours after ovulation.
a viable egg must be available to be fertilized; eggs remain viable for up to a week after ovulation.

Explanation:

Conception requires a viable egg for fertilization. Eggs remain viable for up to 72 hours after ovulation. Sperm can survive in the female reproductive tract for 48 - 72 hours (or up to a week in some cases) and fertilization occurs in the fallopian tube, not near the cervical opening of the uterus.

Answer:

A viable egg must be available to be fertilized; eggs remain viable for up to 72 hours after ovulation.