Answer:
A. fertility awareness
Explanation:
Birth control pills alternate a person's hormonal systems to prevent an egg from being dropped and fertilized, and a condom prevents the sperm from reaching the egg. Fertility awareness is the only one that does neither. It is a method that allows a woman to chart the fertility signs her body produces over the course of a menstrual cycle.
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Answer:
The body needs calcium to maintain strong bones and to carry out many important functions. It's important for keeping strong bones and teeth.
Explanation:
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