Independent variable I believe is the correct answer. Since that is what is being changed.
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.
hope this helps!
Answer: Well if you want to live a good healthy life and live longer you have to take care of your body and eat veggies and fruits and good meats and keep your hygiene clean at all times always smell good and keep looking nice as long as you keep your healthy life going you dont have to worry about anything
Explanation: I hope this is a good proposal on good health
2. Hair, Nails, Skin.
3. Heat, and keeps bacteria and dirt out.
4. Sensory receptors.
5. Pores
6. Salt and heat.
7. melanin.
8. It blocks UV rays from getting to the DNA, which would damage the DNA and possibly cause skin cancer over long periods of time.