Matching Pairs Principles of InfectionOnline version Put into practice what you have learned about infection principles. by Rosalind Carter 1 Fungi 2 Biofilm 3 Scabies 4 Parasites 5 Head lice 6 Bacteria 7 Mildew 8 Germs 9 Viruses 10 Common cold 11 Toxins Can be pathogenic or nonpathogenic Organisms that cannot live on their own Colonies of microorganisms that adhere to environmental surfaces, as well as the human body, and secrete a sticky, protective coating that cements them together. Poisonous substances produced by some bacteria and viruses Submicroscopic particle that infects the cells of an organism Contagious disease caused by the itch mite Plant parasites that can cause contagious diseases Nonscientific synonym for disease-producing organisms An example of a fungus An example of a parasite An example of a virus