1. Virus: A chromosome- like part sorrounded by a protein coat.
2. Host: An organism that provides food for a parasite.
3. Parasite: An organism that lives in or on another living thing and gets food from it.
4. Interferon: A chemical subdtance that interfers with the way viruses reproduce.
5. Vaccines: Substance made from weakened or dead viruses that protect you againstcerytain disesease.
6. Bacteria: Very small, one- celled moneras.
7. Colony: A group of similar cell growing next to each other that do not depened on each other.
8. Capsule: A stick outer layer produce by bacteria.
9. Flagellum: A wiplike thread used for movement by bacteria.
10. Fission: The process of one organism dividing into two organism.
11. Asexual reproduction: The reproduction of a living thing from only one parent.
12. Endospore: A thick- walled structure that forms inside a bacterial cell.
13. Saprophytes: Organism that used dead materials for food.
14. Decomposers: Living thing that get their food from breaking down dead matter into simpler chemicals.
15. Koch’s postulates: Steps for proving that a disease is caused by a certainmicropicorganism.
16. Communicable diseases: Ones that can be passed from one organism to another.
17. Antibiotics: chemical substances that kill or slow the growth of bacteria.
18. Biotechology: The use of living things to solve practical problems.
19. Pasteurization: The process of heating milk to kill harmful bacteria.
20. Blue-green bacteria: Smalled one- celled moneras that contains chlorophill and make their own food.
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