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Monera7 - Monera Introduction The Kingdom Monera consists...

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Unformatted text preview: Monera Introduction The Kingdom Monera consists of all prokaryotes, that is, unicellular organisms that lack nuclear membranes. This taxonomic kingdom consists of two phylogenetically distinct groups: eubacteria and archaebacteria. As seen in part b of figure A.1 eubacteria and archaebacteria are as genetically different from each other as they are from the eukaryotes (organisms with nuclear membranes: protists , plants , animals (invertebrate and vertebrates) and fungi ). Morphologically, archaebacteria and eubacteria differ in some key aspects. While most members of both groups have cell walls, their cell membranes are chemically different, as are their overall chemical makeups. Though there is no hard and fast distinction between the roles filled by the two types of bacteria, most archaebacteria live in extremely hostile environments, such as extremely saline waters or hot sulfur springs. Some eubacteria also live in these harsh environments, but others inhabit locations ranging from surface soils to the intestinal tracks of...
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