Cardiac muscle is involuntary. True or false

Ines is in graduate school and does not want to miss any classes or fall behind on her research project. if she wants to be proactive about her wellness, what should she do?

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 much blood does a healthy agult normally contain