If the layer of skin is relatively thin‚ the nerve response to cold will be the fastest‚ increasing the skin’s sensitivity. This therefore means that the fastest responses to cold will be in the face‚ and specifically the nose. The skin consists of 3 main layers; the epidermis‚ dermis and hypodermis (also known as the subcutaneous). The epidermis consists of dead and nearly dead skin cells which protects us from injury‚ infections‚ fluid loss... acting as a barrier. The Dermis is the skin layer which
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Cintya G. Alarcon Donna Biology 121 section WDF Lab Report # 1 1.On the graph paper in Figure 3‚ plot a graph of your experimental results. Choose an appropriate number scale for the Y-axis and label it Number of Infections. Choose an appropriate number scale for the X-axis label it Number of Exchanges. 2. In a few sentences‚ summarize the results of the experiment. In your summary‚ include data from your summary chart and graph. Statements of results should include only facts—no interpretation
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setting‚ place the pot on and time it with a stopwatch. Record the time and temperature of the solution as soon as it begins to boil. Record the data on your table. 3. Rinse pot vigorously to remove impurities‚ and allow the stovetop to cool. 4. Pour 2 cups of water in the pot add 1 tablespoon of salt and stir. Repeat steps 2 and 3. 5. Pour 2 cups of water in the pot then add 1 tablespoon of water. Repeat step 2. Observations When boiling the water it was quite pure and clear. There was no
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Experiment for the measurement of carbon dioxide and oxygen concentrations and their functions during the act of breathing. Introduction: Humans‚ like all living organisms need‚ O2 in order to live‚ they take the necessary O2 from the atmospheric air. The O2 is transferred from the blood to all cells of the body and serves for oxidation of nutrients for example glucose. By oxidize the nutrients released energy‚ which is necessary for the functions of the human body. During oxidation produces
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stopped spreading on the paper towel. To randomize our data we had a sheet of random numbers that we used and we had four cases of replication‚ which went like this: • Rep 1: Bounty‚ School‚ Wal-Mart‚ Viva • Rep 2: Wal-Mart‚ Bounty‚ Viva‚ School • Rep 3: Viva‚ Wal-Mart‚ School‚ Bounty • Rep 4: School‚ Viva‚ Wal-Mart‚ Bounty Other materials we used besides the paper towels were: • A pipette • An iPhone stop-watch • And a three inch by two inch piece of each paper towel Results:
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English Studies 102 Baba’s Gifts by Jenny Robson and Nomthandazo Zondo 1. The third person narrative voice has been used. The narrator is focalising through one particular‚ which is the main character‚ MaNdlovu. The readers see everything through her. “MaNdlovu looks about the yard and yes‚ it is clean.” 2. MaNdlovu has to tell her husband that they must start using protection (condoms) during sexual intercourse‚ as Dlamini works in the city‚ and spends most of his time there‚ which MaNdlovu
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FRQ #3 a.) The first property of water is its polarity. A water molecule is formed by one oxygen atom covalently bonded to two hydrogen atoms. The electronegativity of the oxygen atom creates an unequal sharing of electrons between the O and H atoms of the molecule. This also gives water the ability to form hydrogen bonds between the slightly negative oxygen atom and the slightly positive hydrogen atom. Water has a high specific heat due to the hydrogen bonds. Because of this‚ water requires
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AP Biology August 23‚ 2012 Egg Osmosis Lab Definition of osmosis: The diffusion of water across a selectively permeable membrane from high to low concentrations Hypothesis: If I place an egg in vinegar‚ then the outer layer of the egg is going to become slimy and look like rubber. It will also become larger and bubbles will form on and around the egg. Hypothesis: If I place an egg in corn syrup‚ then the egg will become small and the outer layer will not look like rubber any longer. Day one:
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Supplies: Three regular sized bags of M&M’s Three bags of peanut M&M’s Activity: 1. Get 1 bag of M&M’s. 2. Guess how many M&M’s are in your bag of M&M’s. Write it down. That is your hypothesis. (DO NOT OPEN BAG) 3. Open your bag of M&M’s and answer your questions (data collection/experimentation) 4. Also‚ be sure to count the total number of M&M’s in your bag and the number of each color M&M in your bag. Fill in the following information as you
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The main occurrence involving the chromosomes during the anaphase is known as the splitting apart of the centromere of the chromatids splitting to create a single chromosome which possess a single DNA molecule. 3. What is the term for the DNA form in a nucleus when a cell isn’t undergoing mitosis (ie when a cell is in interphase)? The term for the DNA form in a nucleus when a cell isn’t undergoing mitosis is known as chromatin.
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