hePhylogenetic Trees: Diagraming the Evolutionary History of a Group of Organisms Adapted from lab by Dr. Rebecca Irwin and “Constructing Cladogram” from Biology: The Dynamic Science, 2nd edition by Russell, Hertz, and McMillan. **It would greatly benefit you to read the “Constructing Cladogram” example in your text on pg. 514 -515 Goals: 1. Understand how to interpret a phylogeny 2. Understand how to construct a phylogenetic tree using cladistics Background Information: A phylogeny represents
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characteristics of fishes that allow them to live successfully in water. No fishes have limbs with digits. The diversity of forms among fishes provide evolutionary biologists with some of the best examples of natural selection, adaptation, divergence, speciation, and historical development of fauna on scales from regional to continental. Far from being the "dead-end" that we land-dwelling creatures tend to assume, fishes are extraordinarily diverse and their watery habitats provide a vast array of places
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Charles Darwin & Evolution Life Work Evolution Pre Darwinian ideas Variation Natural Selection Sexual Selection Speciation Human evolution The Response to Darwin What about Wallace? Impact Updating Darwin Case Studies Applications Darwin & Cambridge Today For Kids For Teachers Natural Selection Natural selection is Darwin’s most famous theory; it states that evolutionary change comes through the production of variation in each generation and differential survival of individuals with different
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Case Study: Midas BUS 644 Operations Management Dr. Snell May 19, 2014 Case Study: Midas Specialization is a two-edged sword. When an organization specializes, they become experts in a particular process, product, or operation. In exchange for this deeper knowledge and ability in one factor, the organization typically suffers a loss of width in the marketplace therein reducing their potential customer base. Efficiencies should certainly be derived from this specialization and with efficiency
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Abstract Understanding evolution helps us solve biological problems that impact our lives. There are excellent examples of this in the field of medicine. To stay one step ahead of pathogenic diseases, researchers must understand the evolutionary patterns of disease-causing organisms. To control hereditary diseases in people, researchers study the evolutionary histories of the disease-causing genes. In these ways, knowledge of evolution can improve the quality of human life. Evolution played an
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(c) Playing God: Another area of concern, is whether we are playing “God” with human evolution. (Cite – Pro/Con) The notion being science should be left out of childbirth, childbirth is a natural event and has been from the beginning of time. While this may true and childbirth should not be left to science, science is sometimes necessary to intervene when it comes to natural events. “People say we should not go against nature, but that’s illogical because every time we cure a disease we go against
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Biology B | Activity | Points | % of Total | Discuss | 75 | 4% | Exam | 100 | 5% | Final Exam | 100 | 5% | Journal | 100 | 5% | Lab | 250 | 13% | Practice | 125 | 6% | Quiz | 740 | 38% | Test (CST) | 250 | 13% | Test (TST) | 200 | 10% | | Total Points for the Course : 1940 | Unit 1: DNA and Heredity | Lesson 1.1: The Code of Life | (Documents: Key Terms) | Activity 1.1.1: Study - Organization of DNA | (Documents: Study Sheet) | Learn about the
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Introduction to Air Pollution: Air pollution is the presence of foreign substances (pollutants) in the atmosphere, emitted by industries and motor vehicles that cause damage to living organisms. Air pollution is the leading cause of several diseases. During the past few years, air pollution has emerged as one of the leading causes of death worldwide. Air Pollutants: Air Pollutants refer to the liquids, solids and gases that are not normal constituents of air. Presence of such substances beyond tolerable
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chlorine incorporation. This is because HOBr is 20 times stronger oxidant than HOCl so reacts faster with NOM shifting the distribution of THMs and HAAs to more brominated species. Ratio of applied chlorine to bromine plays an important role in the speciation of THMs and HAAs (Uyak & Toroz, 2007). Increase in bromide ion concentration first results in the formation of mixed choro-bromo species to fully brominated ones (Hua et al., 2006). It has been reported that brominated DBPs so formed are more carcinogenic
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The SEM micrographs of chitosan, Ca-bentonite and Ca-bentonite/chitosan composite were taken at 3000 magnification showed on Figure 2. These image illustrated that surface of chitosan tight and porous and after forming composite with Ca-bentonite appeared that coverage of Ca-bentonite by chitosan. Elemental identification of surface features were performed by EDX listed in table 2. Fig. 2. SEM micrograph of samples (a) chitosan, (b) bentonite and (c) Ca-bentonite/chitosan composite
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