Abstract: The focus of this experiment was to identify unknown bacteria provided. The identification of unknown bacteria is beneficial in many aspects of the research of microorganisms and also aids physicians to treat patients correctly. Various tests were performed to provide the fermentation abilities‚ presence of particular enzymes‚ and biochemical reactions. Qualitative observations were made on the tests in identification process. The data from experimentation provided sufficient results
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Bibliography: Futuyma‚ DJ. 1998. Evolutionary biology‚ 3rd ed.‚ Sinauer Assoc. Inc.‚ USA Griffiths‚ A.J.F.‚ Miller‚ J.H. Suzuki‚ D.T.‚ Lewontin‚ R.C. and Gelbart‚ W.M. 1999. Introduction to Genetic Analysis. W.H Freeman & Co. New York. Hale‚ W. and Margham‚ J. 1988. Collins Dictionary of Biology. Collins‚ UK. Mayr‚ E. 1942 Systematics and the Origin of Species. Columbia University Press‚ New York‚ USA. Mayr‚ E. (1970)
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idea of simple organisms migrating‚ dying off‚ adapting‚ thriving and changing to fit their needs of survival was unheard of‚ or solely disregarded‚ for it was not supported by many or misunderstood. That is‚ until one man‚ Charles Darwin and his evolutionary theory of natural selection was presented for the world to take into consideration. He provided mass amounts of evidence after traveling to the Galapagos Islands for research to support his ideas and eventually‚ his fundamental proposals would
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Morality Self-consciousness Helping intention a b s t r a c t Regulated by self-consciousness‚ self-deception is a part of the self-system that suppresses negative aspects of the self and maintains a positive moral self-concept. We tested this evolutionary hypothesis on 166 college students by measuring self-deception using both a questionnaire and a series of hypothetical helping scenarios. The results showed a positive correlation between self-deception and moral selfconcept‚ which was moderated
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AP Biology Study Guide Chapter 11 1. Categorize chemical signals in terms of the proximity of the communicating cells. Local signaling – a. Paracrine signaling – a secreting cell acts on nearby target cells by discharging molecules of a local regulator (a growth factor‚ for example) into the extracellular fluid. b. Synaptic signaling – a nerve cell releases neurotransmitter molecules into a synapse‚ stimulating the target cell. Long distance signaling- c. Hormonal signaling – specialized
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The relationship between sexual selection and human reproductive behaviour Sexual selection is a special type of natural selection that is concerned with an organisms ability to successfully reproduce. Survival is no guarantee of passing gene variants to the next generation‚ that can only happen if the animal reproduces. Males usually compete to mate with females According to Trivers (1972)‚ "Where one sex invests considerably more than the other‚ members of the latter will compete among
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Biology Revision Notes Biochemical Tests: Proteins - add biurettes reagent to the sample. If protein is present‚ clear colour change from blue to purple. Reducing Sugars – add Benedict’s reagent to the sample. Heat in Bunsen or water bath. If reducing sugars are present‚ clear colour changes from blue -> orange red precipitate. Lipids – dissolve sample in ethanol. Slowly pour the solution into the water slowly. If lipids are present a white emulation forms on the surface. Starch – add iodine
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w w w e tr .X m eP e ap .c rs om June 2003 GCE A AND AS LEVEL MARK SCHEME MAXIMUM MARK: 40 SYLLABUS/COMPONENT: 9700/01 BIOLOGY Paper 1 (Multiple Choice) Page 1 Mark Scheme A/AS LEVEL EXAMINATIONS – JUNE 2003 Syllabus 9700 Paper 1 Question Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Key D A C C A C D A B A B C B C D A D A C C Question Number 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Key D B B A C C B B C D A C C D B B D B B C
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anthropology involves the study of evolution in humans‚ their variability‚ and their adaptions to environmental stress. To understand evolution in the physical or biological aspects of anthropology anthropologists study human genetics‚ fossil records‚ the biology of living populations and its effect on human evolution (Park). Darwin one of the first to develop and explain evolution discovered his findings by fossil evidence found in rock bed’s around unmarked land. Upon returning to England specialists reviewed
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EVOLUTIONARY EXPLANATIONS Animal Aggression Lorenz- aggressive behaviour in animals have the following functions: • Selection of the fittest for survival • Aggression will protect the young animals for survival • Distribution of animal territories What are the criticisms of Lorenz? Human Aggression Benign Aggression and Malignant Aggression Nelson: the 3 basic factors affecting human aggression • Process of Learning: Social Learning theory-observation/imitation‚ Learning strategies
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