Question

synthetic progesterone as a contraceptive works by __________. a preventing fertilization and implantation b preventing ovulation and changing the uterine lining c preventing sperm from reaching the egg d all apply.

Explanation:

Synthetic progesterone (progestin) - only contraceptives work in multiple ways. They can prevent ovulation (by suppressing the release of luteinizing hormone and follicle - stimulating hormone), change the uterine lining (making it less receptive to implantation), and also thicken cervical mucus (which can prevent sperm from reaching the egg).

Answer:

D. All apply.