Exposure of the skin to uv radiation
group of answer choices

has no effect on skin cells

can cause destruction of vitamin d

can result in damage to the dna in the cells in the stratum basale

can result in decreased melanin production by melanocytes

Which of the following is not a fitness benefit of cycling a: very effective at burning fat b: provides an upper body workout c: provides an aerobic workout d: good exercise for out of shape people

Hiv is inactivated in the laboratory after a few minutes of sitting at room temperature, but the flu virus is still active after sitting for several hours. what are the practical consequences of these findings? a) hiv can be transmitted more easily from person to person than the flu virusb) the flu virus can be transmitted more easily from person to person than hivc) this property of hiv makes it more likely to be a pandemic than the flu virusd) disinfecting surfaces is more important to reduce the spread of hiv than the flu

Explain what you know about the cause of mental illnesses.