1 - Cyanobacteria Fossil Record
http://www.ucmp.berkeley.edu/bacteria/cyanofr.html
Fossil records of the oldest and most abundant of organisms.
2 - Cyanobacteria: More on Morphology
http://www.ucmp.berkeley.edu/bacteria/cyanomm.html
Information about the form and external structure of this unique group
of organisms.
3 - Cyanobacteria: Life History and Ecology
http://www.ucmp.berkeley.edu/bacteria/cyanolh.html
These organisms can use simple compounds in the environment - as a
result of photosynthesis and nitrogen fixation.
4 - Electron Micrographs of Plant Viruses
http://www.bocklabs.wisc.edu/EMGIFs.html
The ordered structure of virus particles is revealed in electron micrographs.
5 - Plant Pathology Electron Micrographs
http://www.res.bbsrc.ac.uk/plantpath/virusems/fastindex.html
Electron micrographs show the complex structure of selected viruses.
6 - Viruses
http://pc65.frontier.osrhe.edu/hs/science/bvirus.htm
This site contains images and related virus information.
7 - Introduction to Cyanobacteria
http://www.ucmp.berkeley.edu/bacteria/cyanointro.html
A general presentation of basic information at this Berkeley site.
8 - What is a Virus?
http://www.uct.ac.za/microbiology/tutorial/virwhat.html
An overview of presence of virus particles in our environment.