A variety of classification systems are used to order bacteria. Bacteria are described as prokaryotes, organisms whose cells lack nuclei, to distinguish them from eukaryotes, organisms such as fungi, plants, and animals, whose cells contain nuclei. Because of this fundamental difference, bacteria are placed in their own kingdom, Kingdom Monera, also called Kingdom Prokaryotae. Recent molecular studies have found that a small group of organisms now known as the archaebacteria, formerly classified with bacteria because …
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showed last 75 words of 329 total
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