City University of New York
The World of Cells: Viruses
Alive or not, viruses are introduced in an easy to follow essay that explains many basic concepts.
CK-12 Foundation
Ck 12: Life Science: Viruses
[Free Registration/Login may be required to access all resource tools.] We have all heard of viruses. The flu, the common cold, and many other diseases are caused by viruses. But what is a virus? Do you think viruses are living? Which...