1) What are the three main types of microorganisms? a) Bacteria, viruses and fungi b) Bacteria, viruses and worms c) Germs, virus and fungi 2) Pathogens: a) are helpful to humans b) can cause disease c) keep us healthy 3) Microorganisms are very small a) True b) False 4) Bacteria are microorganisms a) True b) False 5) Which piece of equipment is used to see microorganisms? a) camera b) telescope c) microscope 6) Which of these would be treated with antibiotics? a) bacterial infections b) viral infections 7) What system helps to fight off disease? a) Digestive system b) Immune System c) Cardiovascular system 8) What substance in the stomach helps to kill bacteria that is taken in with food? a) acid b) saliva c) water 9) What cells help to defend the body against disease? a) red blood cells b) white blood cells 10) The main symptom of chicken pox is: a) an itchy rash b) sickness c) cough

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