If an individual started running 10 miles three times a week, there would most likely be an
a.
increase in flexibility
b.
increase in muscular strength
c.
increase in muscular endurance
d.
increase in weight

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?

Claustrophobia is an example of a(n)

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.