Microevolutionary Process Notes 1) Natural selection works on individuals 2) Individuals do not evolve‚ populations do Insecticide application didn’t result in insecticide resistance: some insects carry trait of resistance in their genes Processes in Microevolution -Mutation -Non-random mating -Genetic Drift -Natural Selection -Gene Flow Hardy-Weinburg Theorem: Frequencies of alleles and genotypes are preserved from generation to generation in populations that are not evolving -p2 + 2pq
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line. If an individual does not reproduce then that is the end of their genes. Therefore any characteristic that maximises an individual’s ability to reproduce successfully is highly adaptive and likely to be naturally selected. Charles Darwin’s theory of evolution by natural selection suggest that the physical environment exerts selective pressure upon adaptive characteristics‚ which are traits that increase the survival potential of an individual because they enable them to better adapt to their
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discriminated against and look down upon in the White society. In reality the Chinese brought us new great agriculture‚ industrial development and commercial fisheries. Without the Chinese America may have not developed its infinite ways of new evolutionary expansion during those times. In the 21st century we
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The Evolutionary Consequences of GMO Escape Hybridization between genetically modified plants and populations of crop plants is a major hazard to be avoided in conducting field trials of genetically modified plants. The reason to avoid this is that gene flow from the transgenic plants into the crop population results in the creation of unwanted and potentially devastating hybrids. This essay explores some of the mechanisms behind gene flow between species‚ and their evolutionary consequences
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is to use evolutionary change. OR. The most effective way to change an organization is to use revolutionary change. Arguments in favour of evolutionary change Change is a fact of life. It happens whether we like it or not. It can be argued that our ability to influence it or respond appropriately determines whether we feel in control and perceive ourselves as being successful in life either at a personal or organisational level. (Van De Ven and Poole‚ 1995) proposed four basic theories to explain
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Discuss the evolutionary explanations of functions of sleep. (24 marks) The evolutionary theories suggest sleep has evolved because it gives an animal a greater chance of survival when in a dangerous environment. They also suggest that sleep has evolved because it conserves energy and coincides with their eating habits. The evolutionary explanation (also referred to as the ecological approach) is based on the observation of animals in their natural environment. The evolutionary approach to
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Discuss evolutionary explanations of human aggression One evolutionary explanation of human aggression is sexual jealousy. Infidelity triggers sexual jealousy which is an evolved adaptive response to infidelity. Men have developed many strategies from vigilance to violence to stop their partner committing adultery. Men never know for certain that the baby is theirs and could be investing in another man’s baby. In a questionnaire‚ if women reported that their partner did not like them talking to
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discuss the evolutionary relationships between the two members of each pair you have chosen. In your discussion include structural adaptations and their functional significance. a. Green Algae...Vascular Plants b. Prokaryotes....Eukaryotes a. Green Algae and Vascular Plants have clear evolutionary relationships. Both Green algae and vascular plants have many similarities displaying this fact. Just a few of these similarities include that both groups have chloroplasts with chlorophyll
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believed that the government should be ruled by middle class men and that people should be trusted to govern themselves but only the properly educated middle class men. Aristotle analyzed all forms of government and found both good and bad examples but he preferred and favored a constitutional government. Aristotle even feared that democracy could lead to mob rule and favored the polity. His ideal form of government was more of a democracy than autocracy. Aristotle that the power of government rested with
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Rules of attraction: Biological and evolutionary reasons of mate choice ABSTRACT Within the past decade we have witnessed a series of new developments and an enormously growing interest in the understanding of human behaviour‚ especially when it comes to the basic principles of human mate choice. Mate preference is something which is often considered a very individual choice and appears to be influenced by cultural and economic norms. However‚ on the basis of numerous research works‚ it is
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