2. Any organism too small to be viewed by the unaided eye. Examples: bacteria or some fungi and algae. 1. MICROORGANISM

3. A condition of an organ, or system of an organism. A disease may result from various causes such as: infection, genetic defect, or environmental stress. Diseases are characterized by an identifiable group of signs or symptoms. Examples: Cancer, Malaria, or Ebola 2. DISEASE

4. A very large group of microorganisms comprising one of the three domains of living organisms. They are prokaryotic, unicellular, and either free- living in soil or water or parasites of plants or animals. Examples: E. coli and Staphylococcus 3. BACTERIA

5. An extremely small living thing that causes a disease and that spreads from one person or animal to another. Examples: Rhino Virus - Common cold or a flu virus 4. VIRUS

6. A disease that is spread by the bite of an infected Anopheles mosquito. Malaria symptoms include fever, chills, and nausea. Examples OR CONNECTIONS: Malaria is a deadly disease just as small pox was before vaccine protection. 5. MALARIA

7. A plant or an animal organism that lives in or on another and takes its nourishment from that other organism. Examples: leech, lice, mosquitos 6. PARASITES

8. A substance that is usually injected into a person or animal to protect against a particular disease Examples: Whooping cough vaccine, chicken pox vaccine, flu vaccine 7. VACCINE

9. A deadly virus that causes fearsome symptoms, the most prominent being high fever and massive internal bleeding. Ebola virus kills as many as 90% of the people it infects Examples or CONNECTIONS: Ebola has a high death rate just as AIDS. 8. EBOLA

10. Any one of a group of related plants that have no flowers and that live on dead or decaying things Examples: molds, mushrooms, or yeasts) 9. FUNGI

11. simple organisms, or living things. Most protozoans are so tiny that they can be seen only with a microscope. Example or CONNECTIONS: They belong to a group of organisms called protists, which are neither plants nor animals. 10. PROTOZOA

12. The End