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Viruses and disease
8 l.1.1 &2
Term | Definition |
---|---|
Virus | A non-living particle dependent on host cells for replication of genetic material. |
Human immunodeficiency virus | A retrovirus that invade T-cell attacking the immune system and resulting in acquired immune deficiency syndrome (AIDS) |
microorganism | An organism that is small to be seen with the naked eye |
Bacteria | Important as Decomposers widely distributed and can break down just about any type of organic matter |
Fungus | Heterotrophic Eukarotes that reproducer through asexual spore break down dead material and can spread disease |
Parasite | lives in or on another organism (host) and derives nourishment from them resulting in harm to the host organism |
Host | an organism in which a parasite reside and/or derives nutrient from. |
Disease | A disorder in an organism that produces adverse effect and is not a result of physical injury can beidentified by specific signs or symptoms and canaffect one or more parts of the organism |
Pathogen | Anything capable of causing infectious diseases. |
Epidemic |