we inhale them, swallow them, rub them in our eyes, and are constantly in a hidden, high-stakes battle with them. these disease causing agents are everywhere. what are they called?

Hand washing is an important behavior that can cut down your chances of becoming sick with a communicable disease. select the best answer from the choices provided. t f

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.

Which is not a physical sign of stress? a )pupils dilate b) breathing becomes faster and deeper c) kidneys and liver constrict d) spending money