Growth Curve: Lag Phase Intense activity preparing for population growth, but no increase in population. Log Phase Logarithmic, or exponential, increase in population. Stationary Phase Period of equilibrium; microbial deaths balance production of new cells. Death Phase Population Is decreasing at a logarithmic rate. Prokaryotes (Bacteria) Gram Positive Low G + C Firmicutes 1. Clostridium: enospore-producing (obligate anaerobes) 2. Bacillales: a. Bacillus
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“The longer you live the longer you should live” –Wiley “Evolution’s a bitch” –Wiley “Suckers are good to eat” –Wiley WHAT HAS EVOLUTION DONE FOR ME What has evolution done for me • Agricultural crops and animal breeding for the past 8,000 years • With the discovery of methods to reconstruct evolutionary relationships there is been a vast increase in the relevance of evolutionary biology to human society. Reconstructing Phylogenies • 1859-1950- No coherent empirical methods
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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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Ant Social Systems Ant Social Systems The social structure of ants is a very complex and interesting one. They live together in underground colonies where they divide labor amongst each individual and work as a cohesive unit. “Scientists estimate that there are about 20,000 different ant species roaming the Earth today (Binns, 2006).” While each species is unique in looks, habitat and food intake, they all share a unified behavior. Of all social insects ants are amongst the highest developed
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mouse (Peromyscus maniculatus), as well as other common species of mouse-like rodents around the world, also sometimes live in houses. These, however, are in other genera. Cats, wild dogs, foxes, birds of prey, snakes and even certain kinds of arthropods have been known to prey heavily upon mice. Nevertheless, because of its remarkable adaptability to almost any environment, the mouse is one of the most successful mammalian genera living on Earthtoday. Mice can at times be vermin, damaging and
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TPO TPO Applied Arts and Fine Arts..............................................................................................................2 Opportunists and Competitors......................................................................................................3 Lascaux Cave Paintings ...................................................................................................................4 Electricity from Wind...........................................................
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page is something called a Medi-Talker. It is perfect for me so I print out the page for it and bring it home. Once I got to Mrs. V’s house I point to my backpack and she opens it and looks over the papers and shows them to mom. Once mom gets home she looks at the papers and once she decides that it is perfect for me she orders it online. It finally arrives on the Wednesday before Christmas. Once I opened it Mrs. V helped me program lots of words and sayings into it. The next day I showed up at school
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INTRODUCTION Infection remains the main cause of morbidity and mortality in man, particularly in developing areas where it is associated with poverty and overcrowding.In the developed world increasing prosperity, universal immunization and antibiotics have reduced the prevalence of infectious disease. However, antibiotic-resistant strains of microorganisms and diseases such as human immunodeficiency virus (HIV) infection, variant Creutzfeldt–Jakob disease ,avian influenza and severe acute respiratory
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of which are distant ancestors to modern organisms, between 530 and 520 million years ago. Also during this time period, there was an introduction to animals without backbones (invertebrates). Organisms such as corals, brachiopods, mollusks, and arthropods populated the early and middle parts of the Paleozoic era. A massive extinction event known as “The Great Dying” marked the end of the Paleozoic era. During this mass extinction, as many
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Culture and Disease HCS/245 March 22, 2012 Michael Coker Culture and Disease Winter has ended and spring is here, and it has everyone running to enjoy the warm air and to embrace the outdoors of the hot summer sun rays. However, there is something lurking within the bushes and in the back yard which, they cannot wait for their next victims to attack. There is a small insect that crawls and is ready to take over Mother Nature because of the warm environment. This type of ticks can
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