Question

cumulative exam
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how do the pill and mini - pill provide protection against pregnancy?
they kill sperm.
they block sperm from reaching an egg.
they prevent the ovaries from releasing an egg.
they release progestin into the body to prevent fertilization.

Explanation:

The pill (combined oral contraceptive) contains estrogen and progestin, while the mini - pill contains only progestin. Both work mainly by preventing the ovaries from releasing an egg (ovulation). Killing sperm is more related to spermicides. Blocking sperm from reaching an egg is a function of barriers like condoms or diaphragms. While the mini - pill does release progestin, its main mechanism is preventing ovulation (and also thickening cervical mucus which can make it harder for sperm to enter, but the key common mechanism with the combined pill is preventing ovulation).

Answer:

They prevent the ovaries from releasing an egg.