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Covid-19 › ViewAre viruses living or non-living?
A. living
B. non-living
C. a little of both
D. zombies
Disease as a Failure of Homeostasis › View
Parasitic strains of E. coli may produce poisonous chemicals that attack living tissue and cause disease in humans. These chemicals are called
A. antibodies
B. toxins
C. viruses
D. antibiotics