the simplest or chemical level and culminating with the highest level-the whole organism Chemical level – atoms (and their parts)‚ and combinations of atoms called molecures Cellular level – cells are the basic structural and functional units of life. Tissue level – tissue are groups of similar cells (and their intercellular material)‚ which work together toward a specific function. Examples include blood‚ muscle‚ nerves‚ ets mostly a common embryo group. Organ level – a structure composed
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NITROGEN CYCLE IN SURFACE WATER BODIES by: yusra shamsudin 1.0 Nitrogen Nitrogen is very essential to all living matters especially to plant‚ animal and human. The source of nitrogen is from the atmosphere and it is exists as a molecule composed of two atom of nitrogen that is bonded together by triple bond. Figure 1: Nitrogen Source: anyone4science.blogspot.com 2.0 Nitrogen Cycle Nitrogen cycle is the transformation of nitrogen from one form to another. For living organism
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and Contrast Essay Colon Cancer vs. Lung Cancer Fatimah Myers COM/155 June 16‚ 2013 University of Phoenix Instructor – Nick Young Outline – Colon Cancer vs. Lung Cancer I. Introduction Although Colon and Lung Cancer affect different organs of the body and have different symptoms‚ they are treated similarly using‚ surgery‚ radiation‚ chemo‚ and targeted therapy. II. The treatment options for colon and lung cancer are similar and are determined
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The Nitrogen Cycle The Nitrogen cycle is the exchange of nitrogen gas in the earth’s atmosphere and living organism’s. Nitrogen is a necessity to all living organisms in their production of proteins‚ DNA‚ and RNA in their cells . However‚ only a few organisms can use this gas directly‚ due to the fact that it may limit the growth of plants. Nitrogen takes up about 78% of the earth’s atmosphere. The nitrogen cycle has three main chemical transformations‚ including nitrogen fixation‚ nitrification
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CELL BIOLOGY ESSAY -- PATHOGENESIS OF CERVICAL CANCER Introduction According to the Centre for Health Protection of the Department of Health (2011)‚ cervical cancer becomes the tenth commonest cancer in Hong Kong in 2008. Cervical cancer usually arises from sexual activity and human papillomavirus (HPV) (Bellentir‚ 2002). In this essay‚ Human papillomavirus would be further discussed. For example‚ the signal transport pathway of HPV 16 and HPV 18‚ which many scientists believe that they are closely
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KREBS CYCLE It refers to a complex series of chemical reactions that produce carbon dioxide and Adenosine triphosphate (ATP)‚ a compound rich in energy. The cycle occurs by essentially linking two carbon coenzyme with carbon compounds; the created compound then goes through a series of changes that produce energy. This cycle occurs in all cells that utilize oxygen as part of their respiration process. It occurs in the matrix of the mitochondria in the presence of CO2.Pyruvic acid diffuses from
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Introduction Fundamentally cancer occurs from accumulated mutations in the genes which control cell proliferation and differentiation (Croce‚ 2008). Normal cells slowly and systemically replace dead ones via cell cycle consisting of growing‚ dividing‚ and dying phases‚ whereas cancer cells keep reproducing‚ and do not surrender to signals from body control (Cancer Research UK‚ 2010). Cancerous cells could invade nearby tissues‚ and even spread to other organs through lymph nodes or blood vessels
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The Water Cycle * Name three important needs of water. a. Almost all of the body’s living cells need and depend on water to perform their functions. b. Water carries nutritive elements to the cells and carries away waste materials and salts to the kidneys. c. Water serves as an important constituent of lubricants. * How is water distributed through the biosphere About 97 percent of all water is in the oceans. Three percent of all Earth’s water that is freshwater. The majority‚ about 69
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Do you know anyone with cancer more specifically throat cancer? I do and so I wanted to learn more about it. Throat cancer also known as cancer of the pharynx can be included in the group of head and neck cancers. 60‚000 Americans are diagnosed with cancer from this group annually. There are more than 500‚000 survivors living in the United States today. The tumors are often found on the tonsils and at the base of the tongue. Throat cancer; though‚ can also be found in three regions of the pharynx
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Alissa Goodnough February 26‚ 2013 Breast Cancer Stay Strong There is a large amount of women who are diagnosed with breast cancer every day but they usually do not know a lot about it in terms of how it forms and the many ways it can be treated. Breast cancer is a very serious disease that shouldn’t be taken lightly. If it is left untreated it can spread to other organs and eventually kill you. Even if you do not have breast cancer‚ chances are that you will know someone who will get it. My
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