Answer:
D
They release progestin into the body to prevent fertilization.
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: 6′ 1″
1. muscle fibers
2.endurance activities
3. all or none principle
4. skeletal muscles
hope this helps :)