Which of these is an uncontrollable risk factors for disease. A. Insects bites
B. Nutrition
C. Genetics
D. Hygiene

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

How many teeth on primary dentition

True or false: determining the source and motive of an ad for a health product will you decide whether the ad is a reliable source of health information.