At least how many hours of sleep do students ages twelve to eighteen need per night? seven
eight
nine
ten

Which of the following is not an internal factor of decision making? a. ethics b. emotions c. peer pressure d. attitude

Which of the following are considered general purposes of performing pulmonary function tests (pfts)? 1. the functional status of the lungs 2. the diffusion characteristics of the alveolar-capillary membrane 3. how much and how fast gas can be moved into and out of the lungs 4. the specific diagnosis of pulmonary disease

Which of the following is the best description of health protecion the answer is b the direct actions taken by health organizations to improve public health