Asthma is an example of
a. the immune system attacking its own body cells.
b. the immune system overreacting to an antigen.
c. an autoimmune disease.
d. an infection.

What type of disease causing organism is so small you must use a microscope to see it? a) carryon b) pathogen c) protozoa d) vices

How could a person communicate directly with leaders about community health issues

Adog begins walking at a speed of 6 kilometers per hour. after 1 hour, the dog is walking at a speed of 4 kilometers per hour. which is this an example of? a. positive acceleration b. negative acceleration c. speed