Vocabulary Bacteriophage- any of a group of viruses that infect specific bacteria, usually causing their disintegration or dissolution.

Parasite- an organism that lives on or in an organism of another species, from the body of which it obtains nutriment.

 

 
Virus- Microorganisms consisting of DNA and RNA molecules wrapped in a protective coating of proteins. Viruses are the most primitive form of life. They depend on other living cells for their reproduction and growth.
Host- a living animal or plant from which a parasite obtains
Vaccine- a substance made from the germs that cause a particular disease, especially smallpox, and given to a person or animal to prevent him from catching that disease
Key Concepts		 How they multiply- a virus’s genetic material takes over the cell’s functions. It tells the cell to produce the virus’s proteins and genetic material.
  How viruses are like organisms- they can both multiply
  How to cure a viral disease- resting, letting it run its course, a well-balanced diet, and drinking a lot of fluids
  Structure- A complete virus particle, known as a virion, consists of nucleicacid surrounded by a protective coat of protein called a capsid