Viruses

2. A virus invades a host to ________________ more viruses.
4. About 5 million virus particles could fit in a single drop of ______________.
5. When the cell is full of virus parts, the viruses burst out and kills the host cell.
9. The host cell follows the virus _____________________ to make new virus parts.
10. An organism that has to use a host to survive.
12. Viruses are considered non living because they do not have their own __________________.
14. The first step of viral replication occurs when a virus 's ___________________________ enters a cell.
15. A type of epidemic that occurs when a virus spreads to many people around the world.

1. Virus genes in the host becomes active and makes copies of the virus.
3. The outer layer that protects the genetic material of a virus.
6. An organism that is harmed by a parasite.
7. Some viruses insert their genes into the host cell, but new viruses are not made right away. The genes stay _________________ for a long time.
8. material and a protein coat.
11. A nonliving infectious particle composed of a
13. The protein coat gives the virus its ___________.