will be discussing the differences in living in the South‚ and in the North. The two places that will be compared are Chicago Illinois‚ and Clarksville Tennessee. It will also tell how the two places are alike and different. The difference is the fast pace of city life‚ and the slow pace of country living. The city life is a better way of living then that of the country‚ due to its broad cultural environment. Topic 1 The city life is a fast pace way of living than in the country.
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important to heat fix the bacterial smear before staining so as to‚ kill the bacteria‚ firmly adhere the smear on to the microscopic slide to prevent washing off during staining‚ and to allow the sample to readily take up the stain. Reference: www2.hendrix.edu What is the purpose of heat- fixing the smear? It helps the cells adhere to the slide so that they can be stained. The purpose of heat fixing is to kill the organisms without serious distortion. They adhere better to the slide and also take
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Taxonomy ○ Science of classification ○ Provides an orderly basis for the naming of organisms and for placing organisms into a category (taxon) ○ Makes use of and makes sense of the fundamental concepts of unity and diversity among living things ○ Basic principle is that members of higher-levels groups share fewer characteristics than those in lower-level groups * Escherichia coli - rod shape and have a Gram-negative cell wall * Even members of the same species display variations in
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Protists and Viruses A flagellum is a whiplike tail that helps organisms living in moist places to move The characteristics of protists is they are euckaryotic organisms‚ they are one or many-celled but do not have the complex organization found in plants and animals‚ and some make there own food and other can’t. Protists are plantlike‚ animallike and funguslike. A virus is a microscopic particles that make up either DNA or RNA core covered by a protein coat. Viruses are so small an electrn microscope
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j e v i ã G r b i ã J e l e n a B. V u k o j e v i ã Institute of Botany and Botanical Garden “Jevremovac"‚ University of Belgrade‚ Takovska 43‚ 11000 Belgrade‚ Serbia ROLE OF FUNGI IN BIODETERIORATION PROCESS OF STONE IN HISTORIC BUILDINGS ABSTRACT: Fungal ability in production of pigments and organic acids have crucial role in discoloration and degradation of different types of stone in cultural heritage objects. Additionally‚ stone objects may support novel communities of microorganisms that
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Bacteria and Archaea The Archaea are presently recognized as one of the two main domains of prokaryotes. The majority of genes that indicate Archaea to be different from Bacteria are for information transfer processes such as DNA replication‚ transcription and translation. Of these‚ DNA replication machinery appears to be most different between the two domains. In terms of transcription‚ the core subunits of the RNA polymerase are the same in Bacteria and Archaea‚ but archaea also contains several
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Microbial Diversity and Ubiquity Microorganisms are microscopic organisms that are so small that that they can only be visualized by the aid of a compound-brightfield microscope. While we generally cannot see individual microorganisms with the naked eye‚ they are present in virtually every habitat known to man. Microorganisms can be prokaryotic—the bacteria or eukaryotic—the algae‚ protozoa or fungi. While viruses are acellular they are also studied in the scope of microbiology because
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Discuss the role of negative feedback in living organisms and how it benefits these living organisms? (25 marks) Negative feedback is the process by which changes occur to bring an organism’s internal environment back to the normal level. One example of negative feedback in a living organism is the ways humans regulate their blood glucose levels. I will firstly discuss the processes that occur as a result of blood glucose levels being too low. When blood glucose levels are too low the pancreas
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Structure and function of macromolecules within a living organism ‘Some biological molecules in organisms are small and simple containing only one or a few functional groups‚ others are large‚ complex assemblies called macromolecules’ [1]. The term macromolecule is convenient because the bulk properties of a macromolecule differ from those of smaller molecules. These large chemical compounds have a high molecular weight consisting of a number of structural units linked together by covalent
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reactions that the living cells and organisms use to maintain life. It also divides into two categories: Catabolism – that breakdown the molecules to obtain energy and Anabolism – that creates all of the compounds that the cells need to function. Nutrition is an important part of the availability of nutrients that utilized in the reactions that either synthesize or catabolize the material that is employed by the cells to produce power. This power is a requirement by the organism to synthesize proteins
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