Chapter 14 word Vocabulary

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Across
  1. 5. any process that uses bacteria, fungi, green plants or their enzymes to return the environment altered by contaminants to its original condition
  2. 6. asexual reproduction by a separation of the body into two new bodies
  3. 9. a virus that attacks the body's immune system (HIV)
  4. 12. a chemical reaction in which one reactant breaks down into two or more products
  5. 14. a group of micro-organisms that are similar to, but evolutionarily distinct from bacteria
  6. 16. a small circular DNA molecule found in bacteria and some other microscopic organisms
  7. 17. bacteria that can survive and grow where there is no oxygen
  8. 20. single-celled organisms belonging to the domains Bacteria and Archaea
  9. 21. A type of immunity that develops when a person's immune system responds to a foreign substance or microorganism, or that occurs after a person receives antibodies from another source
  10. 22. When a virus is present in the body but exists in a resting (latent) state without producing more virus
  11. 23. A vaccine in which a live virus is weakened through chemical or physical processes in order to produce an immune response
Down
  1. 1. medicines that fight infections caused by bacteria in humans and animals by either killing the bacteria or making it difficult for the bacteria to grow and multiply
  2. 2. a dormant, tough, and non-reproductive structure produced by certain bacteria
  3. 3. the process by which one bacterium transfers genetic material to another through direct contact
  4. 4. when a person is given antibodies to a disease rather than producing them through his or her own immune system
  5. 7. an organism causing disease to its host
  6. 8. an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat
  7. 10. a hair-like appendage found on the surface of many bacteria and archaea
  8. 11. microscopic living organisms that have only one cell
  9. 13. prokaryotic microorganisms that are capable of transforming nitrogen gas from the atmosphere into “fixed nitrogen” compounds, such as ammonia, that are usable by plants
  10. 14. a protein produced by the body's immune system when it detects harmful substances, called antigens
  11. 15. microscopic hair-like structures involved in the locomotion of a cell
  12. 18. a small, soluble case of gelatin containing a dose of medicine
  13. 19. the process of heating, and then rapidly cooling, liquids or food in order to kill microbes that may expedite their spoilage or cause disease
  14. 21. bacteria that can grow and live when oxygen is present