There are three types of bacteria shapes and they are on the main ways bacteria are classified.
There is the cocci shape, which is spherical
There is the bacilii shape which is rod-shaped
There is the spirilli shape which is spiral-shaped
These can further be divided into their arrangement. They can be by themselves (mono) in pairs (diplo) in chains (strepto) and in clusters (staphlo)
Finally. bacteria can also be classified based on other crtieria such as how they react to gram strains but the main classification is based on shape.
Hope I helped!
Illustrate the different forms of bacteria?
http://en.wikipedia.org/wiki/Bacteria
http://encarta.msn.com/media_461529212/T...
Reply:http://www.btinternet.com/~stephen.durr/...
http://www.gutenberg.org/files/15283/152...
http://gsbs.utmb.edu/microbook/images/fi...
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