Why is the standing quadriceps stretch a better stretching exercise than the sitting quadriceps stretch? a. it stretches the quadriceps muscle further. b. it can also be performed while lying down. c. it exerts less force on the knees. d. it causes sideways torque on the knees.

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 does fi stand for in the fitt-vp principle of exercise prescription?

4. decision trees are organized through a series of choose one answer. a. tiers b. the cut/dry method invented by the university of madagascar c. disorganized webs