CONTENTS * INTRODUCTION ----------------------------------------------------------- 3 * AIMS ----------------------------------------------------------- 4 * HYPOTHESIS ----------------------------------------------------------- 5 * RESULTS ----------------------------------------------------------- 6 - Calculations - Table 6.1 - Table 6.2 - Table 6.3 - Graph 6.1 - Graph 6.2 * DISCUSSIONS ----------------------------------------------------------- 7
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We then used a cork borer to cut two holes in the agar 1cm apart. We then filled one hole with potassium ferricyanide. Next we filled the other hole with ferrous sulfate. We then observed the petri at an interval of 15 minutes. We observed and recorded results. Results: 1. Yellow solution is spreading out from the hole and into the gel and clear solution. 2. The clear ferrous was not clear to see‚ but it conjoined with the yellow solution 3.
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Advancements of Medicine in the 1920’s Medicine had a huge advancement in the 1920s. Many scientists had discovered medicines‚ but it was hard for them to purify them and give them to people. Because of the discovery of penicillin‚ insulin‚ Band-Aids‚ and vitamins‚ the lives of the American people were greatly changed. Band-Aids were invented in 1920. An employee at Johnson and Johnson‚ Earle Dickson‚ made a way to help his wife with the various cuts that she would get throughout the day. He made
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INTRODUCTION TO DROSOPHILA GENETICS DROSOPHILA CULTURE We will study basic principles of Mendelian inheritance with the use of the fruit fly‚ Drosophila melanogaster [the name means “black-bodied fruit-lover”]. Drosophila was one of the first organisms to be studied genetically: its small size‚ short life cycle (10 ~14 days at 25oC)‚ high reproductive rate (an adult female can lay 400-500 eggs in 10 days)‚ and ease of culture and genetic manipulation have made it perhaps the best understood animal
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crystals and their growth Hypothesis: ~ the crystals will grow better when they are in room temperature. Dependent variable: ~ the size of the crystals. Independent variable: ~ the temperature. Controlled variable: ~ ml’s of copper sulphate per dish‚ the same dishes‚ the volume and concentration. Method: ~ 1. Set up 12 watch glasses with 20ml of copper sulphate (wet) solution in each. 2. Place 4 of the dishes in a
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Purity and Hope in Nature The summer solstice marks a shift in the year: everyday gradually becomes shorter‚ and closer to winter. In some religions‚ the summer solstice represents enlightenment‚ and new beginnings. The image of nature as pure is repeated throughout “Summer Solstice‚ New York City” by Sharon Olds. “Summer Solstice‚ New York City” relates the story of a man trying to commit suicide‚ but choosing life and finding comfort in the police sent to rescue him. Initially‚ the title seems
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collect better results by using human cells instead of animals’. Since the products are used on humans‚ why not use human cells? For example‚ in glass testing‚ studying cell cultures in a Petri dish‚ can produce better results than testing animals because human cells would be tested (Rogers). Using the Petri dish to better study human cells is worthwhile. Some scientists use chemicals when working with the animals‚ but in result the outcome is not as accurate as it can be if the scientists used human
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The Relationship Between the Rate of Diffusion and Molecular Weight as Observed in Postassium manganate‚ Potassium dichromate‚ and Methylene Blue Elisha Padilla Group 3 Sec. X – 8L March 26‚ 20151 ABSTRACT The relationship between the rate of diffusion and the molecular weight of a substance was determined by introducing three substances (KMnO₄‚ K₂Cr₂O₇‚ C₁₆H₁₈N₃SCl) of different molecular weight to agar-water gel‚ and measuring the distance of diffusion every
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MBK Lab 01 – Lab Report Name: ____________________ Section: ___________________ EXPERIMENT 1 TITLE: Observing Bacteria and Blood OBJECTIVE: To gain functional knowledge of microscope operations through practical applications of a microscope in the observation of bacteria and blood. PROCEDURES: Using the microscope‚ an oil immersion lens and observing Bacteria Cultures in Yogurt . Preparing a Blood Slide and observing Blood: After reviewing the section of the manual
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Because the bug was dead‚ it was nearly impossible to compare it to any of the characteristics on the this. However‚ the anatomy could be compared. While the type of bug is unknown‚ the bug was black‚ along with some other few bugs of the same petri dish‚ which is most likely believed to be the same type.
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