The answer is body's line of defense. The first line of defense which includes physical as well as chemical barriers would defend the body from infection. It would include the tears, cilia, stomach acid,urine, white blood cells,mucus and the skin. The skin is the largest organ and would act as a barrier from pathogens. If first line of defense won't work the second line will then be activated.
Economic factors such as employment rates and education levels have the biggest impact on population.
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An HMO requires a referral from the primary care physician before they will cover a visit to a specialist. A podiatrist is considered a specialist.
Answer:
More energy, prevention of injury and
Explanation:
