Should experiments on animals be illegal? Answer byDr Drake708 It is definitely something that should not be legal‚ I don’t think any way you look at it it’s an okay thing to do‚ most animals die‚ or become sick and very ill‚ deformed‚ or loose hearing‚ site‚ voice‚ and fur. They think it’s okay to test on animals because they are merely animals and have no say. They don’t choose to be test objects‚ they breathe‚ eat and sleep just like normal people. They feel‚ they have feelings. Things hurt them
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The Osmosis Lab SHS Lacrosse Monster #2 Dates performed: 10/10/11 and 10/11/11 Introduction: The purpose of the laboratory investigation was to observe the diffusion of water across a semi-permeable membrane. In this lab‚ dialysis tubing was used to represent the semi-permeable cell membrane. Three dialysis tubes were prepared with 5% sucrose solution and were soaked in solutions of different concentrations. The diffusion of water across a semi-permeable membrane is called osmosis. When
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| Adelaide High School | [Osmosis Practical Report] Abstract: | The purpose of this investigation is to see if the concentration of Sodium chloride (NaCl) solution will affect the mass of the potato cylinder hence the rate of osmosis. This can be done by placing 5‚ identical in length (3cm) but different in weight‚ tubes of potato in 5 different beakers. Each containing an altered NaCl concentration. The concentrations used in this experiment were‚ 0%‚ 2%‚ 10%‚ 15%‚ and 26%. Potatoes
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Investigation into finding out the Effect of the effect of osmosis In potato cells Introduction I am doing an experiment to find out the effect that osmosis has on Water solution and a Sugar solution. Osmosis is a process which water moves from an area of low concentration to an area of high concentration. I am going to record my results to see if osmosis occurs in water solution of sugar solution. Apparatus In this experiment I would need; - 1) 3 test tube 2) A beaker
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Investigate osmosis between potato tissue and sugar solutions. Aim: To investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato core of a given size 10mm Hypothesis: Osmosis is defined as the net movement of water or any other solutions molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable
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INTRODUCTION: Osmosis is defined as the net movement of water or any other solutions molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as a cell wall‚ which lets smaller molecules such as water through but does not allow bigger molecules to pass through. The molecules will continue to diffuse until the area in which the molecules are found reaches a state of equilibrium
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skin burned off and spinal cord crushed? This is the reality for more than 100 million animals worldwide. In Canada‚ over 3.33 million animals are used in experiments and over 125 000 are subjected to severe pain. The animals are left for days to wait in fear of the next terrifying and traumatic experiment that will be performed on them. Major effects of stress and boredom trigger neurotic behaviors in the animals these include spinning in circles‚ rocking back and forth‚ pulling out their own hair
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Animal rightsPros and cons of animal experiments Personaly I don’t think that there are many pros about this subject‚ but I’ve written down a few. Pros: There are vaccines for most of the diseases. Like the ones you’ll recive when you’re an infant‚ wich are very important. If you have a deadly disease‚ like cancer for example‚ you can prolong your life for years‚ if you discover it early enough. Thanks to the science and research with animals. In some cases you can also help sick
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most debated topics of our times is whether we should use animals for ex-periments or not. The interesting point that always comes up is what else is there instead of our dear friends. Without our lab creatures; our medicines‚ cosmetics and food would not be tested and might not be safe for our use and consumption. The process of using animals to test safety of food and medicines was practiced for many centuries. People watched domestic animals and studied their eating habits to identify food and herbs
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rate of osmosis across a potato’s cell membrane submerged for 94 hours in the solutation. Background Information: Osmosis is the movement of solvent molecules across a partially permeable membrane. They move from a region of low concentration (hypotonic) to a region of high concentration (hypertonic). The rate of osmosis across a eukaryotic cell membrane can be affected by different factors; including temperature‚ concentration gradient‚ water potential and the surface area for osmosis to occur
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