It means that he must apply first aid as soon as possible
but he must also be careful so as not to jeopardize the victim’s life. He has to do it fast but must know the
procedure so that he can both save and stabilize the victim’s life.
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.
Learn more about Vitamin D -
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Answer:
Aerobic exercise
Explanation:
They can improve your cardiovascular health, help you control your weight and give you more stamina and energy. Examples of low-impact aerobic exercises that are easier on your joints include walking, bicycling, swimming and using an elliptical machine.
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Well if you're referring to the human body, our cells make up a lot of everything we're made of. Muscles, organs, bones, blood, skin, etc. Biologically speaking, there's a lot to the human body besides organs. Sorry if this isn't very helpful.
