hello every one i wanna thank y'all for getting me over 30 friends in 2 days : ) hopefully i can get over 50 by the end of the week lol but no rush

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?

What are the systems used to describe how information is stored in the brain? list each.

Fiona and thomas are neighbors and have been friends for many years. recently, fiona has started dating someone from her karate class, and now fiona and thomas are experiencing conflict. what is the most likely source of this peer conflict? values information power and structure relationships and roles