Bacteria
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Anabaena
x1000. A blue green bacterium. The elongate somewhat
clear cells are nitrogen fixing cells called HETEROCYSTS.
Asexual reproduction occurs when chains of cells break at
the heterocysts forming separate cell chains.
Bacillus sutilis
x1000. Gram positive rod shaped bacteria.
Escherichia coli
x1000. Gram negative rod shaped bacteria that commonly
live in the human large intestine.
Clostridium botulinum
x1000. These bacteria cause botulism poisoning.
Gleocapsa
x1000. A blue green bacterium. Individual cells secrete a
gelatinous material.
Nostoc
x1000. A blue green bacterium that consists of strings of
spherical cells within a gelatinous material.
Oscillatoria
x1000. This blue green bacterium exists as a filament of
cells.
A large spiral bacterium
x1000.
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