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Study of small living organisms
-pacteria, special fungi like molds and yeast, protozoa, certain algea, viruses
one celled mivro organism enclosed by a cell walll
3 bacteria shapes
spherical spaed (cocci)
rod shpaed (bacilli)
require oxygen to grow (destroyed if there is no oxygen)
grows without osygen present (destroyed by oxygen)
grow in both stages with and without osygen
analyze and identify bacteria using special dye and divides bacteria into two groups
fromed by bacteria / protective layer covering the call wall
-resist the defense mechanism
-may prevent antibiotics from working and are generally virulant
causing serious disease
highly resistant single celled
most resistant form of life