Which of the following is a controllable risk factor of infectious diseases? drug abuse pollution air or heredity

Maintaining a healthy weight allows the respiratory system to work more effectively because a. oxygen is being delivered more adequately. b. the heart does not have to pump as forcefully. c. the capillaries are constricted. d. the lung capacity allows for small amounts of air.

Name 3 type of doctors that use medical furniture (chairs), and diagnostic equipment as well as exam tables.

Ais a person who demonstrates effective communciation, self-directed learning, critical thinking, and responsible citizenship