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“Mr. Pneumonia was not a chivalrous old gentleman. A mite of a woman with blood thinned by California zephyrs was hardly fair game for the old duffer.” This quote comes from a fictional short story called The Last Leaf by O. Henry. It tells the story of a woman‚ Johnsy‚ who is stricken with pneumonia and has chosen to let fate decide whether she will survive or not. The three things that stand out in this story are its conflicts‚ its suspense‚ and its theme. The conflicts within this story are
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Methyl Red and Voges-Proskauer Test The Methyl Red test shows which bacteria are creating stable acids through mixed acid fermentation of glucose. This helps to identify enteric bacteria by examining how they metabolise glucose. Every enteric bacteria first produces pyruvic acid from metabolism of glucose. A methyl red positive enteric bacteria‚ uses the mixed acid pathway when breaking down pyruvic acid to different acids‚ like lactic‚ acetic‚ and formic acids. The Voges-Proskauer test determines
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Recent Breakthrough - “Artificial Leaf” In the past 3 million years‚ the levels of atmospheric carbon dioxide have been at their highest ever. With the more relatively recent beginning of the Industrial Age‚ the amount of clean‚ breathable air that humanity depends upon for survival‚ has‚ as a response to the Era‚ decreased. The increase in carbon emissions and the increasing dependence upon fossil-fuels for energy has led to a global race for the creation of a carbon-neutral‚ renewable energy
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The “Maple Leaf Rag” by Scott Joplin‚ is one of the most famous ragtime music known in modern times. The song is reminiscent of the last time I went to Disneyland‚ and is played commonly there by the pianists employed there having shows‚ which brings back good memories‚ therefore‚ making me biassed to say that it makes me feel happy and excited. Like ragtime is is known today‚ the tune is all solo piano‚ no vocals. The tune is upbeat and fast‚ and you can hear a lot of moving up and down the scale
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density of stomata in the upper and lower epidermis of a dicotyledonous leaf. Stomata are the principle means of gas exchange in plants. Stomata are small pores they are controlled by guard cells which control the opening and closing of stomata. Stomata allow carbon dioxide to enter the plant‚ and allow water and excess oxygen to escape. About 90% of water is lost from the leaf during transpiration. The number of stomata on leaf surface varies among different species. The lower epidermis tends to
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CHARACTERS Sue -loving -caring she always taking care of Johnsy Johnsy - sick - easily give up she think she is going to die when the last leaf fall down from the tree she keep counting the leaf. Doctor - busy - kind he have lots of patient to take care of. he was always kind to Johnsy. Mr.Behrman -old -painter he was past sixty at last he painted a great masterpiece‚ Mr.Pneumonia -old gentleman - bad he was not a nice old gentleman he was bad because he hurt a weak
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reflected and colors like red and blue are seemed to be absorbed. If blue and red wavelengths have more absorbance‚ the green doesn’t have a high absorbance. This lab is useful to help demonstrate the existence of various leaf pigments by using the process of paper chromatography.
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Literature can teach innumerable valuable lessons. In “Gwilan’s Harp” the protagonist goes through hard situations‚ but she manages to keep a positive attitude through it. In “The Last Leaf” the main character must help her best friend through difficult times. The central figure in “The Last Leaf” helps her friend no matter what. In “The Washwoman” the lead character goes through hard times; nevertheless she does not give up. All these short stories teach valuable life lessons through their
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AP Lab #5 Plant Pigments/Photosynthesis I. Identifying the Effects of Different Variables of Light and Carbon Dioxide on the Rate of Photosynthesis and Observing the Separation of Pigments Through Chromatography II. Introduction Plants have a variety of pigments‚ all of which absorb a different color of light. The three main pigments are chlorophyll a‚ chlorophyll b and carotenoids. Chlorophyll a is the primary plant pigment that absorbs red and blue light‚ which ultimately appears green to the human eye
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