On October 22‚ 1879‚ the lives of everyone around the world would be forever changed. Before the invention of the light bulb‚ people everywhere would have to resort to using candles or lanterns. Thomas Edison was not the first to invent the electric lightbulb but was‚ in fact‚ the first person to invent the first practical incandescent light. Several other people before Edison attempted a shot at making this invention but shortly after failed. Such other inventions had faults such as (extremely)
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Different Parts of a Plant Cell Plant cells are classified into three types‚ based on the structure and function‚ viz. parenchyma‚ collenchyma and sclerenchyma. The parenchyma cells are living‚ thin-walled and undergo repeated cell division for growth of the plant. They are mostly present in the leaf epidermis‚ stem pith‚ root and fruit pulp. Mature collenchyma cells are living‚ and provide stretchable support to the plant. Lastly‚ sclerenchyma cells (e.g. fiber cells) are hard‚ non-living and
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The effects of different wavelengths of light on the rate of photosynthesis Introduction This experiment was performed to investigate the effects of different wavelengths of light on the rate of photosynthesis. If a multiple colored film petri dishes are place under a 50 watt lamp‚ then the rate of photosynthesis will be greater for those with red‚ blue and clear film‚ than those with green and black film. We believed the petri dishes with the red‚ blue and clear film would produce the best
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main two articles that have inspire me the most are Nancy Mairs’ essay “On Being a Cripple” and Zora Neale Hurston’s essay “How It Feels to Be Colored Me”. I have chosen these essays not only because of the ‘key concepts’ that can be found in each of these texts but also because of their similarities both stories share. They both discuss how they refused to be defined by how society sees them which makes both stories interesting and appealing to read. Mairs discusses the many obstacles she has to
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the outcome of the world. Why are volcanoes important? Volcanoes helps plants and trees by putting out nutrients into the soil. The plants give animals food to eat and after the animals eats the plant the animal gets the nutrients from that plant. How the plants get the nutrients is the ash is full of nutrients and when it lands it covers the ground and then it gets sucked up over time then it goes into the ground and the plants get that nutrients. The trees give shade and shelter to animals so when
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EFFECTS OF WATER SOLUTIONS IN PLANT GROWTH CHAPTER I Introduction Plants are affected by different substances that come into contact with them. These effects may be good or bad. There are certain substances such as fertilizers‚ which have a positive effect on the growth of certain plants‚ more specifically pechay (Brassica rapa variety chinensis). Pechay is commonly used in cooking in Filipino households. It requires little attention as it is a very hardy plant. It is rich in vitamins A‚ C
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and necessities for growth and reproduction. For plants‚ soil is needed to obtain these nutrients. Plants must also have light‚ air and water in order to grow. Light is a major component because plants need it in order to survive in their habitats because they use it to make food through photosynthesis. Light is also used to reflect off a natural green color‚ which is absorbed by the green pigment‚ chlorophyll. Aim What effects does sunlight and no light have on growing plants? The goal of this
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How it Feels to be Colored Me “How it Feels to be Colored Me” is an essay based off of personal life stories of Zora Neale Hurston. Zora reflects on her life’s experiences with her colored identity. I believe that Zora does not ever feel out of place with who she is. Even though segregation is a huge part of her ancestry as well as her generation‚ she seems to rather blend in well with white people. It seems as though she almost feels obligated to feel discriminated because of her ethnic background
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In the experiment‚ the effect of light intensity on the rate of photosynthesis will be tested. Photosynthesis is the process in which autotrophic plants create their own food (energy) from sunlight. Photosynthesis involves three ‘ingredients’ or reactants‚ carbon dioxide‚ water‚ and light energy (sunlight). Carbon dioxide and sunlight come in through a leaf’s stomata which are tiny holes‚ and water is absorbed through their roots. When all of these reactants are combined in a plant’s chloroplasts
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the opium poppy plant‚ and is related to heroin‚ morphine‚ and other drugs common to opiate addiction. The confusion between the generic vs. specific terminology has gotten so bad‚ some experts have turned to calling narcotics "opioids" to help stifle the confusion. Common types of narcotics include barbiturates‚ benzodiazepines‚ heroin‚ opium in the form of morphine andcodeine‚ oxycodone and Vicodin.巴比妥类，苯二氮卓类药物，海洛因，鸦片，吗啡 How Do Narcotics Affect the Body? Narcotic drugs can affect the body in various
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