Answer:
to be sure a person has no heart disease to be sure a person has no heart disease.
to identify the risk of muscle or bone defects to avoid injury on the athletic field to identify the risk muscle or bone defects to avoid injury on the athletic field.
and also
to keep other players from getting infected by any transmittable diseases.
Explanation:
They do this in order to check if they are healthy enough to do the fitness so they don't collapse or their heart does not stop pumping in the middle or spread any germ
When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.
Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.
The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.
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Answer:
all of the above
Explanation:
it truly depends on the drug, but all of those are possible side effects
