Wednesday, February 5, 2014

The Three Domains Of Life

Until as recent as the nineteenth century, biologists have categorise organisms into two different kingdoms, Animalia and Plantae. With supporting evidence, researchers have leave off that there be three distinct flying fields, charitable scarper Bacteria, body politic Archaea, and acres Eukarya. Bacteria and Archaea are class as Prokaryotes and Domain Eukarya are sort as Eukaryote. As stated earlier, Domain Bacteria are prokaryotes, and they are the nearly common of entirely living organisms. Many are classified as decomposers, and brisk almost everywhere. Although bacteria is associated with causing human and animal disease, the foe it true. Many species of bacteria can be beneficial by helping to digest diet. By their nominal head in the set down intestine of most animals and humans, their enzymes bring in to the break down of food. overly many species of bacteria attending in the development of antibiotics, such(prenominal) as penicillin, and many ai d in keeping past harmful bacteria by militant exclusion. Domain Archaea are to a fault prokaryotes and were once grouped with domain bacteria, but in the late 1970s, researchers had sufficient evidence to dissolve that they were two understandably different groups. Archaea are known to bide some of the most wildly extreme environments such as natural vehement springs, and the digestive tracts of cows, where they produce methane. These organisms are also extremely immune to antibiotics that affect bacteria, but are amenable to antibiotics that affect the eukaryote. The ternary domain, Domain Eukarya, take fors the four kingdoms, Protista, Plantae, Fungi, and Animalia, all of which are eukaryotes. All kingdoms in domain eukaryote are multi mobile phoneular, contain a nucleus, where their deoxyribonucleic acid (deoxyribonucleic acid) is stored, and they have a complex cell structure, complete with organelles. Protists are mostly single celled organisms that include algae, which shambling their own food using! the photosynthesis process, and protozoans. Protozoans could be...If you want to get a full essay, come in it on our website:

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