Both directional and disruptive selection show the distribution of phenotypes. Distribution selection takes place when an extreme phenotype is favored‚ and the distribution curve shifts in that direction. Antibiotic resistant bacteria are an example of directional selection. When an antibiotic is used‚ some bacteria may survive causing it to produce bacteria that is resistant to that antibiotic. Disruptive selection occurs when two or more extreme phenotypes are favored over an intermediate phenotype
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philosophy of language teaching which [he] called the Natural Approach" (Terrell 1977; 1982: 121). This was an attempt to develop a language teaching proposal that incorporated the "naturalistic" principles researchers had identified in studies of second language acquisition. At the same time he has joined forces with Stephen Krashen‚ an applied linguist at the University of Southern California‚ in elaborating a theoretical rationale for the Natural Approach‚ drawing on Krashen’s influential theory of
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Plot Analysis of the Story Everyday Use The story Everyday Use is told by Mama who can be described as a tough-boned woman with rough hands like those of a man. The woman has lived and enjoyed a farming life upcountry. After years of hard work‚ she lives in a tin-roofed house with a clay yard located in a cow pasture. The author does not tell us the geographical area of the story but a good analysis shows that it takes place in Georgia. Mama anticipates that in the coming few days Maggie will get
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Pumps Selection‚ Operation & Maintenance Dr. M.F. Khalil Professor Mech. Eng. Dept. Alexandria University Alex.Eng.Society Short Course By MFKhalil 1 Pumps Function Classification Construction‚ Theory ‚ Operation & Applications Alex.Eng.Society Short Course By MFKhalil 2 Pump Pump is a mechanical device which • converts mechanical energy of its driving unit ( electric motor‚ diesel engine‚ steam turbine ‚gas turbine ‚wind turbine.. Etc.) to hydraulic energy .This hydraulic energy
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From his scholarly and personal experiences‚ Lewis Thomas postulates in his essay that our anxieties about the pain of dying are possibly unfounded‚ thereby assuaging our fears in the hope that we will view death as a “natural” part of life. In his essay‚ “On Natural Death‚” he uses inductive reasoning and appeals to both reason and emotion to persuade his readers to no longer fear the pain of death. Thomas provides the example of the death of an elm tree to build the reader’s idea of the subject
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‘Victor Frankenstein is justly punished for his blatant interference in the natural process of life. It is a clear case of science and ethical responsibility being abused’ To what extent do you agree with this assertion? Support with close textual reference Frankenstein’s instinctual lust for knowledge and mechanical love for the human anatomy drives his interference in the natural process of life. This interference is harshly ramified within Shelley’s novel through specific characterisations
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The natural world or nature represents the physical world and the living elements found within it. In its broadest sense‚ nature entails all the living and inanimate things that exist within the physical world. All the elements of the natural world‚ whether living or inanimate‚ significantly depend on each other. Of all the living things‚ man crucially depends on the elements of nature for his survival. On the same account‚ we have the responsibility to ensure that the natural world remains intact
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INTRODUCTION A natural calamities is a major adverse event resulting from natural processes of the Earth; examples include floods‚ volcanic eruptions‚ earthquakes‚ tsunamis‚ and other geologic processes. It can cause loss of life or property damage‚ and typically leaves some economic damage in its wake‚ the severity of which depends on the affected population’s resilience‚ or ability to recover. The earth’s wrath destroys everything in its stride. Usually it is at peace but once it unleashes its
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NATURAL VEGETATION Natural vegetation refers to a plant community which has grown naturally without human aid and has been left undisturbed by humans for a long time. This is termed as virgin vegetation. Thus‚ cultivated crops and fruits‚ orchards form part of vegetation but not natural vegetation. Virgin vegetation -The virgin vegetation‚ which are purely Indian are known as endemic or indigenous species but those which have come from outside India are termed as exotic plants. Flora- The term
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Describe the approach of the Natural Law theory to moral decision making Natural law is an absolute and deontological ethic which alligns itself to teleological aspects of morality. Cicero stated that ‘True law is right reason in accordance with nature.’ which is his definition of what is good‚ essentially linking it to the views of natural law. According to natural law‚ all humans know what is right and wrong as it is in their nature. Therefore‚ right and wrong do not need to be taught as
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