Question 9 of 20 is the ability of muscles to repeatedly exert themselves.
O A. Muscular endurance
B. Cardio-respiratory endurance
C. Flexibility
O D. None of the above

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 is the structure of our circulatory system and respiratory system related to the function of both these systems?

To confirm when to exclude children from school, it's recommended that you refer to guidelines from which of the following organizations? a. national association for child care professionals b. academy of family practices c. american academy of pediatrics d. national association for the education of young children