Answer:

Explanation:
Sorry If it is wrong......
The answer is: "social epidemiology" .
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" <u> Social epidemiology </u> i<span>s the study of the causes and distribution of health, disease, and impairment throughout a population."
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Out of the choices given, to ensure that Rachel properly applied all the necessary FITT principles to her plan, she needs to add more cardiovascular training to her exercise routine and eat several low-calorie meals throughout the day. The correct answer is A.
B it measures cardiovascular and respiratory fitness
Answer: When turned on, genes provide the code for creating protein molecules, the building blocks of physical development.
Explanation: