fundamentals of science. Title An investigation of an onion cell using a light microscope. Aim: The aim of this investigation is to identify the cells within an onion skin using a light microscope. An onion cell is a plant cell which through the light microscope‚ it should outline the cell wall‚ cell membrane and the nucleus. Introduction: Plant cells have a cell wall and cell membrane which animal cells do not have. The cell wall provides support and is relatively rigid‚ which consists of
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PLANT CELL Introduction Plant cell is the basic unit of structure and function in nearly all plants. The range of specialization and the character of association of plant cells are very wide. In the simplest plant forms a single cell constitutes a whole organism and carries out all the life functions. In just slightly more complex forms‚ cells are associated structurally‚ but each cell appears to carry out the fundamental life functions‚ although certain ones may be specialized
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pluripotent stem (IPS) cells differ from those currently in place for human embryonic stem (ES) cells. An IPS cell is created artificially from skin‚ fat and fibroblasts by reprogramming patient ’s own cells. Scientists believe IPS cells to be a promising source for treating diseases. An ES cell is created by destroying an embryo. Other scientists think ES cells will also be a promising source because it is composed of your own DNA‚ so the immune system won ’t reject the cell. While scientists would
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Discuss research into the Formation of romantic relationships. (8 + 16 marks) Walster`s matching hypothesis implies that persons search for a partner is influenced by what they want in a partner and who they think they can get as a partner. The more socially desirable a person is‚ the more they would expect their potential partner to be. In this sense‚ most people are in fact influenced by their chances of having affection reciprocated. This relates to how someone may feel that another individual
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Meanders are sinuous bends in a river’s middle and lower courses. In low flow conditions‚ alternating pools and riffles are formed along the river bed. The river channel is deeper in pools so it has greater energy and more erosive power. Energy is lost as the river flows over a riffle because of friction. These cause the river’s flow to become uneven and maximum flow to be concentrated on one side of the river‚ causing lateral erosion on one side‚ creating an outer concave bank. Deposition takes
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Texas was the seventh state to seceded from the Union on February 1st‚ 1861. The vote was 166 to 7 and was passed on February 2nd‚ 1861. It allowed the State of Texas to join the confederate states in the south of the nation‚ on March 2nd. The signees were very carefully chosen and a lot of unique faces in it. Oran Milo Roberts was a very important signee and had a huge impact on Texas by being president of the secession convention‚ the Chief Justice of the state Supreme Court‚ and Governor of Texas
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treatment of many diseases. Stem cell research has provided hope and has brought optimism among the scientists and doctors in curing the patients who suffered or died due to the once called "untreatable" diseases decades ago. Stem cells are the ones which can develop into any type of a body cell including the cells of blood‚ liver‚ brain‚ muscles‚ and many more. They are found in adult bone marrow‚ embryos‚ fetuses‚ and blood from the umbilical cord (Bailey 100). Stem cell research is the latest advancement
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How Our Skins Got Their Color Summary This article states on how we got our skin color. In this article Marvin Harris described how the pigment of our skin originates where we live around the equator. If someone lives around the equator they have high risk of getting rickets‚ or osteomalacia. For example‚ if someone was light skinned living in Australia your chances of getting melanoma is high. The reason the risk is high for light pigmented skin living in Australia‚ is because many of them wear
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Boyhood In both Adam Haslett’s “City Visit” and Edmund White’s “Cinnamon Skin‚” foreign cities awaken internal conflict and disrupt ideal expectations of romance and the world. Foreign cities invite tourists to explore‚ discovering different culture and scenery. In turn‚ this diverse landscape invites the possibility of self-exploration and self-identity. Most travel to exotic‚ faraway places with the idea that they will come back positively changed and transformed for the better. For some‚ these
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increases in complexity? A) ecosystem‚ population‚ organ system‚ cell‚ community‚ molecule‚ organ‚ organism‚ tissue B) cell‚ molecule‚ organ system‚ organ‚ population‚ tissue‚ organism‚ ecosystem‚ community C) organism‚ organ system‚ tissue‚ population‚ organ‚ community‚ cell‚ ecosystem‚ molecule D) molecule‚ cell‚ tissue‚ organ‚ organ system‚ organism‚ population‚ community‚ ecosystem E) ecosystem‚ molecule‚ cell‚ tissue‚ organism‚ organ system‚ organ‚ community Answer: D Topic:
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