What we know about Bacteria… Prokaryotic: No Nucleus & no membrane bound organelles Unicellular Can be good or bad 2 Kingdoms LIVING.
Anatomy of a Virus. The tiniest viruses are 20 nm in diameter. (smaller than a ribosome) They consist of nucleic acids enclosed in a protein coat and.
Chapter 18 Viruses Updated Nov. 2008. Overview: A Borrowed Life Viruses are the simplest biological systems. Most viruses are little more than aggregates.
What we know about Bacteria…
Viruses
