Answer:
They block sperm from reaching an egg.
Explanation:
Unlike the traditional birth control pill, the mini-pill has only the hormone, progestin. Taken daily, the mini-pill thickens cervical mucus and prevents the sperm from reaching the egg.
Answer:
3
Explanation:
Vaccines protect travelers from serious diseases. Depending on where you travel, you may come into contact with diseases that are rare in the United States, like yellow fever. Some vaccines may also be required for you to travel to certain places.
