Jared Choy Mr. Dahlhausen Period 6 17 November 2014 Does Age affect Reaction Time? When a person sees a health care provider and the doctor hits the person’s knee with a rubber mallet‚ the person’s leg kicks up on its own. This happens because when the doctor hits your kneecap‚ the tendon under it gets stretched‚ which in turn will send a signal to an awaiting motor neuron so it can command the muscle to contract. Let’s take for example the reflex arc. A reflex is the involuntary movement of the
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retailer and corporation employing 2.1 million people and approximately 1 percent of the United States (Smart Planet)‚ and usually is the place one would go to get the best deals‚ but is it really good for one’s local economy? There has been much controversy over the how Walmart affects not just the global economy but the local economy. One might believe that it’s good for their economy because it has the best prices for their products‚ and it saves people money‚ but this
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How does the concentration affect the rate of a reaction? 30/1/2012 By Alex Whenman Contents page 1. Introduction to my investigation 2. Background information on concentration 3. What experiment I will be conducting 4. Equipment I will be using 5. How I will be conducting the experiment 6. Heath and safety risk assessment 7. What I think will happen 8. How I will set up my experiment 9. Why I’m having my experiment set out like
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How does the length of a wire affect its resistance? Introduction: This first report in Physics will show the investigation of how the length of a wire affects its resistance. For starters I will go through the main definitions‚ to get a better knowledge of what is going to happen. However I will plan it out first to show each step of how I started‚ and then go into detail about the results and what the investigation on a whole has showed me. I shall then conclude my findings and present them with
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cup of coffee.Almost a third of the world’s people drinks coffee. But coffee was not recognized a healthy drink. It has a history of being blamed for many disease.Coffee can stimulants parts of the human body‚ such as heart and muscles because of its caffeine content.Caffeine is a natural stimulant existent in over sixty plants ‚most commonly found in tea‚ coffee and cacao plants.It works by stimulating the brain and central nervous system‚ help people to stay focus and prevent the tiredness.Caffeine
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How Death can affect Perception of Reality Perception of reality‚ what is it? It is how one views the world around them and each persons is different. Many things can alter and affect someone’s perception either negatively or positively and an example that could go both ways is death and the relationship someone may have with it. The authors‚ Jill McCorkle and Edgar Allen Poe‚ do a good job of displaying this in their writings. However‚ the character of Fish is accepting of death‚ whereas the
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SCIENCE HOW DOES COLOUR AFFECT PLANT GROWTH? AIM To find out if colour affects plant growth‚ and if plants are adaptable to the colour of light‚ and how much light it gets. INTRODUCTION For this Science assignment‚ I chose to find out if the colour and amount of light a plant receives‚ affects plant growth. Light is electromagnetic radiation that comes in waves‚ the basic units of which are called photons. Plants use light to turn carbon dioxide into sugars necessary for growth‚ a process called
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on the bone. Pulse rates vary from person to person. Your pulse is lower when you rest and increases when you exercise. More oxygen rich blood is needed by the body when exercising so knowing how to take your pulse can help you evaluate your exercise programme. The amount of exercise someone does will affect the pulse rate. For example‚ more exercise means more movement so more energy will be needed. In order to get more energy‚ respiration takes place at a faster rate. More oxygen is used so more
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The effects of gelatin on the process of Fermentation How does gelatin affect the process of fermentation? The experimenters hypothesized that the more gelatin that was added into the mixtures of yeast and water‚ the more the mixtures will ferment. The experimenter’s hypothesis was not determined correct or incorrect due to the inconclusive results of the experiment. Throughout the experiment‚ none of the balloons grew from fermentation. The results of the labs were meant to measure the CO₂ released
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Physics GCSE coursework: Resistance of wire Aim: To investigate if the length of wire affects its resistance. Prediction (Hypothesis): I predict that the longer the wire the higher the resistance‚ and the shorter the wire the lower the resistance. Knowledge: Resistance is that property of electric components that turn electric energy into heat in opposing the passing of an electric current.It can be beneficial‚ as in electric heaters‚ or a pest‚ as in light bulbs‚ where the heat
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