Chapter 9-11

6. Process which pathogens spread.
9. Extent to where a pathogen is able to cause disease or cause damage.
10. rigid, flexible supporting materials containing high proportion of collagen fibers.
12. Immunity resulting from an individual’s own immune system.
14. Ability of bacteria to resist antibiotic effects.

1. Mechanism that moves air into and out of the lungs in inhalation and exhalation.
2. Y shaped molecules made up of 4 polypeptide chains and 2 identical long chains.
3. Tissue capable of contraction.
4. Main biological measure to prevent a person developing diseases.
5. Layers of large, thin, flattened cells.
7. Ability to resist the effect of pathogen and doesn’t become ill.
8. Flexible airway supported by pieces of cartilages.
11. Destroys other microorganisms or inhabit their growth.
13. Immunity acquired from another source.
15. Kills body cells infected to a foreign material.