biology 1 0.0 / 5 ? Applied SciencerevisionGCSEAQA Created by: chelseafagan234Created on: 29-05-15 17:46 what is a pathogen? a bacterium, virus, or other microorganism that can cause disease 1 of 5 what do white blood cells do? White blood cells are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. 2 of 5 where do white blood cells travel? in the blood 3 of 5 how do white blood cells act if something is envading? 1) engulf microbes and digest them. 2) produce antibodies 3) produce antitoxins 4 of 5 pros of a vaccination they control infectious diseases 5 of 5
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