Invasive Species The invasion of non-native species is one of the United Nation’s top five environmental concerns; however the term invasive species is one which many people do not fully understand. It is a term used in the media‚ by governments and ecologists‚ to indicate to the public that a new species has entered an area‚ and usually very little is said afterwards‚ however many people do not realise the severity and long term effects of invasive species in their area and worldwide. Unfortunately
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Escherichia coli Abstract Bacteria growth is known to be either augmented or impeded by a number of various factors; in this experiment‚ our group tested how E. coli is affected by penicillin as well as how different temperatures can affect bacteria growth. We know that antibiotics are generally specialized against certain types of bacteria—more specifically‚ some are most effective against Gram-negative‚ some against Gram-positive‚ and some are more broad spectrum. Given that E. coli is known to
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One of the most well known area visited of Arlington National Cemetery is the Tomb of the Unknowns. Many of the soldiers buried at the Tomb of the Unknowns fought in World War One. Additionally‚ millions of soldiers had died during the first World War and many American soldiers were brought home from the European battlefields and many others’ were never identified. On October 21‚ 1921‚ four coffins were dug up from the four American military cemeteries‚ which were located in France. Corporal
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Endangered Marine Species Topic: Marine mammal extinction and endangered species. Specific Purpose: To inform my audience of the causes‚ protection programs and possibilities for future protection for endangered species. Thesis: Endangered marine animals are in need of protection and awareness; many people need to understand the origins of endangerment‚ what animals are being affected and what is already being done to help our marine life. Introduction I. Have you ever thought about how important
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Zimbabwe and Angola. My knowledge of the black rhino has increased dramatically due to my interest in endangered species. I became interested in endangered species when an advocate from the World Wildlife Foundation came to my school in 8th grade. Ever since‚ I have kept up with their website and read articles on what this incredible organization is doing for the advancement of endangered species. The St. Louis zoo is home to three black rhinos named Ruka‚ Kati Rain‚ and Ajabu. Ruka was born on January
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I think that invasive species are invaders. An invasive species are living organisms that are non-native species in particular environment. In other words‚ it is an imported species that has a tendency to spread and is capable of damaging the environment‚ the human economy and human health. Some of these invasive creatures have caused the extinction of whole species and have caused irreparable damage to the surrounding ecosystem. For example‚ alien insects‚ organisms‚ plants cause damage to crops
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5: What are the characteristics of this pathogen.(Morphology‚biochemistry‚and pathogenicity).How do the possible pathogens in the case study differ? Ans: Borrelia burgdorferi is a spirochete. Spirochetes are a group of phylogenetically-distinct bacteria that have a unique mode of motility by means of axial filaments. (endoflagella).Spirochetes are widespread in viscous environment‚ they also have a unique cell surface which accompanies their unique type of mortility.The endoflagella are contained
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Mrs. Feeney Biology 9 October 16‚ 2012 Identifying Organic Compounds Objective: To use indicators to test for the presence of organic compounds in certain substances. Theory: Major types of organic compounds in some common foods are Lipids‚ Carbohydrates‚ and Proteins. An indicator is a chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. The purpose of using distilled water as one of the substances in the test
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Cambridge CELTA Written Assignment 1: Focus on the Learners Part A: Student profile: Personal Information: Previous Language Learning Experience: Chien has been studying English for two years‚ of which only the last three months have been at English teaching centres; the rest of her English learning has been self-taught. Because of this‚ her pronunciation and listening skills are not as good as they should be for an intermediate level student. She is conscious of this fact and this negatively
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forms of microorganisms are on the rise. The importance of identifying these pathogens and their related epidemiology has become increasingly more important. The purpose of this study was to identify an unknown bacterium in a controlled laboratory environment over a 5 week period. Utilizing a variety of differential testing and staining methods learned in the microbiology course‚ students were to determine the identity of an assigned unknown organism. Observations were made and recorded each week
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