symptoms) to severe and fatal. The term infection does not have the same meaning as infectious disease because some infections do not cause illness in a host. Disease causing biologic agents include viruses‚ bacteria‚ fungi‚ protozoa‚ multi-cellular parasites‚ and aberrant proteins known as prions. Transmission of these biologic agents can occur in a variety of ways‚ including direct physical contact with an infectious person‚ consuming contaminated foods or beverages‚ contact with contaminated body fluids
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University in Massachusetts‚ scientists reported a case where a cat turned up infected with a worm found in raccoons. (6) Cats are three to four times more likely to carry rabies then dogs (7) Cats are known to get many parasites or infectious microbes like roundworms‚ hookworms‚ giardia and campylobacter Premises+ sub-argument (3) = (8) Twenty common North American bird species have dropped by 68% since 1967. A variety of factors are to blame (9) In
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Water Pollution Water – The Elixir of Life Can you imagine life without water? Take a minute and think about it. We need water for all our daily essential activities – drinking‚ bathing‚ cleaning… In fact‚ every living thing on this planet needs water Water pollution And what do we do with this vital resource? We take its all important ability – we all know that water can dissolve many of the thing that we dump in it – to make it a giant rubbish bin. In fact‚ we even throw things
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caused by a small parasite‚ that is called Entamoeba histolytica‚ which harms the bowel‚ claims the http://ideas.health.vic.gov website. The horrid disease of Amoebiasis can harm anyone; however‚ the disease mostly occurs in young to middle aged adults. A terrible fever‚ stomach cramps and diarrhea which may contain blood are all symptoms to Amoebiasis according to http://ideas.health.vic.gov . How does it spread one may ask? Well Amoebiasis occurs when Entamoeba histolytica parasites are taken in by
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| APICOMPLEXIA | CILIPHORIA | Class | Class: LOBOZEA (amoeba)Species: ENTAMOEBA HISTOLITICA: * Only pathogenic parasite of this class * in large intestine * morphology: 1.trophozoite ; 2. Quadrinucleate cyst - 15 micrometers (smaller than 10 is ‘non-pathogenic’)‚ found in colon and feces‚ 4 nuclei * Life cycle: > parasite in caecum > mature cyst is swallowed > cyst hatches in intestine and quadrinucleated amoeba come out > divide into 8 trophozoites * Can occur
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BIO 2135 - Animal Form and Function Midterm examination Worth either 10% or 15% of your final grade Tuesday February 9‚ 2010 a) Place your name and student number in the space provided below. Be sure that your name is on the top of each page because the exam will be separated to facilitate marking b) Circle the lab section for your lab. c) Check to be sure that your exam is complete with a total of 12 pages including this one d) Answer all questions in the space provided on the exam. Do not transfer
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Diversity WORD | DEFINITION | Mitochondria | The part of a cell where cellular respiration occurs | Vacuole | The part of a cell used for storage | Cytoplasm | Fluid found outside the nuclear membrane | Morphology | The branch of bio that deals with the structure or form of organisms | Taxon | A named group of organisms | Phylogenetic tree | Shows the evolutionary differences between different species | Capsid | The outer layer of protein that surrounds the genetic material of
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Euglena Tryponsoma 2. Super group Chromolaveolata a. Ceratium b. Plasmodium c. Paramecium d. Laminaraia 3. Super group Archaeplastida a. Red Algae “ Polysiphonia” b. Green Algae “Chlamydomadas‚ Hydrodictyon‚ Spirogyra‚ Volvox” 4. Unikonta a. Amoeba b. Some other small creatures that have flagella Pro – No membrane‚ No Histone‚ They have a cell wall‚ unicellular Super groups in Eukarya domain: Monophyletic – includes all the descendants as well as the common ancestor Paraphyletic – Grouping
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Infection Control in the Workplace Every health care worker plays a vital part in helping to minimise the risk of cross infection – for example‚ by making certain that hands are properly washed‚ the clinical environment is as clean as possible‚ ensuring knowledge and skills are continually updated and by educating patients and visitors. Standard precautions (formerly known as universal precautions) underpin routine safe practice‚ protecting both staff and our residents from infection. By applying
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A Survey of Eukaryotic Cells and Microorganisms HISTORY OF EUKARYOTES: 1. Evidence indicates that the first Eukaryotic cells first appeared on the earth approximately 2 billion years ago. Fossilized cells appear in shale sediments from China‚ Russia and Australia the date from 850-950 million years ago. 2. Biologists have discovered evidence to suggest that the eukaryotic cell evolved from prokaryotic organisms by a process of intracellular symbiosis. 3. Some of the organelles that
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