-
Bacteria and Viruses
Michael Crumpton
Library Binding (Perfection Learning, Jan. 1, 2007)Bacteria are single-celled organisms with the ability to help and harm other living things. Viruses can reproduce only in host cells, often causing infections.
Y
-
Bacteria and Viruses
Michael Crumpton
Hardcover (Perfection Learning, Jan. 1, 2007)None
-
Bacteria and Viruses
Limited Barrett Kendall Publishing
Paperback (Perfection Learning, Sept. 1, 2006)None