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Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

Organ system   A group of organs that work together to preform a major function in the body  
Pathogen   An organism that causes disease  
Antibody   A protein produced by a B cell of the immune system that destroys pathogens  
Immunity   The body's ability to destroy pathogens before they can cause disease  
Homeostasis   The maintenance of stable internal conditions in an organism  
Stress   The reaction of a person's body to potentially threatening, challenging, or disturbing events  


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Created by: FuntomFive