Anonymous

I suspect that you are supposed to give the answer of either a host or a cell. However, even as the rudimentary level of high school biology this is not a true dichotomy.

Anonymous

Nothing. A virus isn't really alive. It doesn't need anything except a temperature that doesn't destroy it and the absence of things that destroy it (chemicals, radiation). Bacteria can starve, a virus cannot.

Anonymous

Your teacher wants "A living cell to be a host" Your teacher isn't thinking about the many many intracellular pathogenic bacteria.

Anonymous

A host.

Anonymous

Poop

Anonymous

A cell. A virus is nothing without a cell to get inside and use.