light microscope when you want to see the cell in the act of moving or dividing. 2. Prokaryotic cells don’t have organelles like eukaryotic cells do. Eukaryotic cells contain its DNA within its nucleus‚ while prokaryotic cells keep it within the nucleoid. Prokaryotic cells are also more minute than the eukaryotic cells. Also although they both contain ribosomes‚ they are composed differently. 3. The central vacuole (takes in water and chemicals)‚ cell wall (allows the plant to be strong enough
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This is a picture of the Sachsenhausen Concentration Camp entrance. This picture basically sums up my grey and gloomy experience. Before going into the camp‚ I was ready to take a lot of pictures and go into this camp with an open-mind‚ instead of thinking about how many human-beings were tortured and killed. I had a feeling the tour of the camp and the atmosphere would feel creepy and sad‚ but it was not necessarily creepy‚ just mainly unreal that the Holocaust really happened and this was the
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Concentration camps were places of death and hard labor for Jews. The Nazis controlled these camps‚ by dividing Jews in different camps and sections. Jews had to be creative to avoid getting caught by the Germans. First off the concentration camps were horrific places in which many Jews were put to death. Second‚ Hitler was the one who got Germans to abuse the Jews to death‚ and last; after death the Jews were still misused by the German police and Hitler. The things about the Holocaust that
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Cell City Cell City A cell is like a city. They both have parts that play different roles. A cell is microscopic that has organelles‚ and a city has different services. Keeping them both running smoothly and orderly. As a result they both survive and grow. There’re a lot of different organelles in a cell that are similar to a city for example the cell membrane borders and protects the cell it’s role is letting certain things in and out of the cell in the same way a border in a city does. Another
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A mobile phone (also called mobile‚ cellular telephone‚ or cell phone) is an electronic device used for two-way radio telecommunication over a cellular network of base stations known as cell sites. Mobile phones differ from cordless telephones‚ which only offer telephone service within limited range through a single base station attached to a fixed land line‚ for example within a home or an office. Today‚ cell phones are the most popular tool for communication in modern life.
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21 October 2013 Cell phones Should we allow students to use their cell phones in school? Would it be benifical for students? Students should have the abilty to use their cell phones in school because you will never know what will happen to you or your child. There can be any type of an emergency such as earthquakes‚ a crime scene‚ or a fire. Students should be able to use cell phones in school because how about if someone was going to get hurt and didnt have a way to get help or find help
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address this question: “Propose a possible explanation on why the light caused depolarization of the off-center ganglion cell?” we first have to describe the structure of the center -surround in the receptive fields of retinal. In the receptive field‚ there are cone photoreceptors that communicate with On and Off center bipolar cell and finally On and Off center ganglion cells that carry the action potential to the cortex. When light comes to the retina (eyes) it causes closing of channels in the
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the functional role of amacrine cells in retinal dynamics. In this thought paper I will argue that together with the bipolar and ganglion cells‚ the amacrine cells operate in a parametric system similar to the feedback and feedforward systems found in motor control. In order to determine the role of the amacrine cells they needed to determine the method of bipolar convergence and divergence in ganglion cells. When stimulated individually‚ two different bipolar cells were able to elicit distinct post
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Concentration of liquid foods is a fundamental operation in many food processes; it is completely different from dehydration. Usually‚ foods‚ which are concentrated‚ remain in the liquid state; while drying produces solid or semisolid foods with significantly lower water content. The concentration of liquid foods has three different methods; evaporation‚ membrane concentration‚ and freeze concentration. Evaporation usages gas liquid phase separation. It has the lowest capital cost and the maximum
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The Dachau Concentration Camp was the first camp established in March 1933.It became the first concentration camp made by the Nazis. It was placed by a munitions factory by the city Dachau. It is nearly 10 miles from Munich‚ Germany. In the first year there were 4‚800 prisoners. The first prisoners were German Communists‚ Social Democrats‚ Trade Unionists‚ and other opponents of the Nazis. During 1937 the SS made the prisoners construct a large group of buildings on the grounds of
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