science because they are fun to watch and students can learn their charm characteristics (Ansberry). They also have are very high structure making them high in genetic drift but low in gene flow (Zierold). Our Biology class studied the triops by observing how long they swam between the colors: black and yellow‚ and how long they swam between the colors: black‚ yellow‚ white‚ and red. We put a piece of paper under the container they were in. Then‚ we brushed the Triops into the center of the container
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The Blood/Circulatory System Anatomy & Physiology I March 18‚ 2013 The blood system is part of the circulatory system. I am going to be focusing on the blood and the diseases which affect the blood. The blood‚ heart and blood vessels form the cardiovascular system which links the body’s internal and external environments together‚ by transporting substances between the two. Blood is a type of connective tissue that carries nutrients‚ oxygen and wastes through the body. Blood cells are formed
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Oxygen Requirements of Bacteria BACKGROUND The GasPak system is useful for culturing anaerobic bacteria on standard microbiological media because the GasPak generates carbon dioxide and hydrogen. The hydrogen will combine with oxygen present in an anaerobic jar to produce water. This system can reproducibly attain oxygen levels in the parts per million range if used correctly. This is the best method for determining the oxygen requirements of unknown organisms. A candle jar is useful
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Title: Staining Introduction: Microorganisms are small and colorless‚ invisible to unaided eyes. When observing them under microscopes‚ we use various methods to make microbes apparent. One of the most important methods is staining. Staining techniques play an essential role in the studying of microorganisms; they help to reveal characteristics of microbes‚ such as their morphologies‚ sizes‚ arrangements‚ chemical components and many more. The purposes of the experiments are to be
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Bacteria Morphology April 2‚ 2015 Abstract – The Purpose of this exercise is to gain experience in bacterial morphologies in prepared wet-mounted slides and interpreting the findings of bacteria through direct and indirect staining technique. Hypothesis – The experiment will allow for further insight into stained organisms‚ allowing extended contrast‚ differentiating shape and structure through utilization of microscope. Procedure – Instructions followed as per procedure‚ specimens
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MBK – Lab Report Name: ____________________ Section: ___________________ Bacterial Morphology Pg 61 Part 1: Viewing Prepared Slides of Common Bacterial Shapes Familiarize yourself with each morphological type to use as a comparative tool for the remainder of the activity. Record your observations. Part 2: Disinfecting Your Area to Use Live Organisms: Part 3: Viewing Live Organisms – Wet Mount Preparation Record your observations. Part 4: Direct Staining:
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repositories of bacteria/microbes ⁃ borne sterile ⁃ microbe on all surface area of the body ⁃ sterile areas: eyes‚ brain‚ spinal cord‚ bones‚ kidney‚ internal organs ⁃ mutualistic relationship: we provide site and nutrient and microbes provide vitamin‚ aid in food digestion ⁃ division of microbial world ⁃ living component: organism ⁃ prokaryotic ⁃ nucleoid area ⁃ one circular chromosome ⁃ non-membranous organelle ⁃ cell wall: peptidoglycan ⁃ binary fission ⁃ bacteria simple‚ dynamic
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There are various reasons why we observe children in schools. We make objective decisions and assessments about pupils; • Behaviour • Learning styles • Levels of development • Skills • Learning achievements • Learning needs/future goals We need to see how they interact with other children and adults and how they perform against each other. There are two main types of observation – informal and formal. With the informal observation you may observe a child in the classroom‚ out on the playground
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species of bacteria look similar under the microscope and also have the same staining results (ex. Gram stain). To be able to differentiate between the different species‚ one can look at the metabolic differences (fermentation)‚ as well as the environmental condition differences (temperature‚ pH‚ oxygen requirements). Being able to manipulate these conditions in a controlled environment can help to correctly identify the exact bacteria. Different media can be used to culture and identify bacteria. Some
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Received 3 October 2002/Accepted 21 November 2002 Downloaded from http://aem.asm.org/ on June 6‚ 2013 by UNIVERSITY OF DELHI Despite their commercial importance‚ there are relatively few facile methods for genomic manipulation of the lactic acid bacteria. Here‚ the lactococcal group II intron‚ Ll.ltrB‚ was targeted to
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