MBK – Lab Report Differential Staining Questions: A. What is a differential stain? How is it different from a simple stain? 1. A differential stain is a stain that differentiates between gram-positive and gram-negative bacteria. Bacteria that stain purple are considered gram-positive and those that stain pink are considered gram-negative. 2. A simple stain is a stain that reacts with all microbes in and identical fashion. They are used to increase contrast. 3. They
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and later reeds‚ were made into baskets to store food surpluses. Some foods could then be saved for future meals and less time was needed for seeking and gathering food. Paper may be the oldest form of what today is referred to as "flexible packaging." Sheets of treated mulberry bark were used by the Chinese to wrap foods as early as the First or Second century B.C. During the next fifteen hundred years‚ the paper-making technique was refined and transported to the Middle East‚ then Europe and
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------------------------------------------------- Differential Psychology studies the ways in which individuals differ in their behavior. This is distinguished from other aspects of psychology in that although psychology is ostensibly a study of individuals‚ modern psychologists often study groups or biological underpinnings of cognition. EXAMPLE In evaluating the effectiveness of a new therapy‚ the mean performance of the therapy in one treatment group might be compared to the mean effectiveness
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Analyzing the significance of situational thresholds‚ whether or not an investigator for the United States Equal Employment Opportunity Commission (EEOC) believes a charge of discrimination should be filed against an employer‚ Hindera and Young (1998) researched the correlation between investigators (African American and white) and the proportion of charges filed on behalf of African Americans. Consistent with previous research‚ they find that both African American and white passive representation
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What exactly is an absolute threshold or difference threshold? In this paper‚ I will experiment these two thresholds‚ go in depth of what exactly they are‚ and I will also contrast. I will first talk about absolute‚ then work my way into difference. Each one of our bodies organs have what is called sensory receptors‚ which detect stimuli from the outside world and process it so that the braid can comprehend. These receptors can be found in such places as the eyes‚ ears‚ nose‚ and mouth. Hints the
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The purpose of this differential heating lab is to see which of the given materials would heat up faster or remain the same when heated by our heat lamp. in previous years‚ when this lab has been conducted for the most part‚ results were the same as our results. Our background knowledge consisted of knowing about which of the given materials were more flammable. Hypothesis: if differential heating occurs‚ then different materials will heat at different rates. I would assume that the leaves
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The Two-Point Threshold I. Introduction In the two-point threshold experiment it is obtained how close two distinct sharp point can be together for a person to feel two points instead of one. The value of the two-point threshold is the minimal distance at which the subject can feel two distinct points. The principle behind this experiment is the fact that mechanoreceptors are not distributed homogeneously in the skin of the human body. There are areas with a higher density and areas with a lower
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Chocology(Chocolate+Tecnology) By Maurice O Simmons Preface As I sat down to think about this research paper I thought about chocolate and all the things I could write about and they all seem to be the same thing. Where chocolate came from‚ and how it was made as well as how do you cook with it and even some chocolate recipes. I wanted to do something that I thought had never been done before‚ be original I hope that this is something that you haven’t seen before in a research paper.
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Chocolate Table of Contents Introductions……………………………………………………………………………………………………………………page 1 Table of Contents…………………………………………………………………………………………………………….page 2 Why is chocolate the most popular sweet? …………………………………………………………………….page 3 How is dark chocolate different from milk chocolate? …………………………………………………….page 3 How are cocoa beans grown? ………………………………………………………………………………………….page 4 How was discovered? ………………………………………………………………………………………………………page 4 Conclusion ………………………………………………………………………………………………………………………
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TIMELINE FOR HISTORY OF CHOCOLATE In 1500BC – 400 BC‚ the Olmec Indians are believed to be the first to grow cocoa beans as a domestic crop. Cacao trees have grown wild for possibly 10‚000 years. The Olmec civilization only lasted until about 300 B.C. In the 14th Century‚ cocoa became a drink that was popular for the upper class of the Aztecs; they called it “xocalati” meaning warm or bitter liquid. They were the first to tax the beans. In 1492‚ Christopher Columbus was said to have brought back
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