During their survey of different birth control methods (including surgical methods), barbara and evan learned that vasectomies are highly effective and permanent, but they are not immediately effective. barbara was surprised to learn that couples must use alternative birth control for at least how long after the operation?

Couples must use alternative birth control after the operation for about 3 months.Your doctor will tell you when there’s no sperm in your semen and the vasectomy is working as birth control.

what is the question?

explanation:

if you explain what it is, i'd be happy to you.

a. steroid--> influences moods in the limbic system

b. inhalant--> dissolves fatty tissue in the brain

c. marijuana--> changes how the hippocampus processes sensations