SCI 230 Week 1 Checkpoint Theories of Biology.doc The Major Theories of Biology Evolution by natural selection: This theory came about as a result of Charles Darwin trying to find an explanation for “why there are so many different living beings on earth?” (Pruitt‚ N. L.‚ & Underwood‚ L. S. (2006). His theory contains two parts‚ the first part states that species change over generations. The second part states that what causes this change is natural
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Body Fat and Eating Disorders With more than 60% of the U.S. adult population overweight and 25% of those considered obese‚ it is important to understand the obesity epidemic and the serious effects it has on health. To understand obesity‚ it is important to understand body composition. Body composition is the body’s relative amount of fat to fat-free mass. The body’s fat-free mass is compromised of all the body’s non-fat tissues; this includes bone‚ water‚ muscles
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SCI/241 Fat and Water Soluble Vitamins There are many different types of vitamins and each has its own special role in the body‚ they might all be different but they all are essential for the body’s health. All the different vitamins are categorized into two groups‚ Fat soluble vitamins (vitamins A and E) and then there are water soluble vitamins (vitamins B-complex and C). Vitamins are an important part of the body’s daily intake‚ because they
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Digestion is the complex process of turning the food you eat into the energy you need to survive. The digestion process also involves creating waste to be eliminated. The digestive tract (or gut) is a long twisting tube that starts at the mouth and ends at the anus. It is made up of a series of by muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food. Along the way are three other organs that are needed for digestion: the liver
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build and nourish cells; and to provide energy. Food travels though the digestive tract by muscle contraction called peristalsis. This journey of digestion can take up to twenty four hours. Digestion begins in the mouth where the teeth break food down into smaller particles during mastication. Salivary glands secrete saliva which begins chemical digestion and keeps the food moist. Swallowed food is pushed into the pharynx by the contraction of multiple muscle of the face‚ neck and tongue. The soft
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Yellow Stone National Park Alejandro Otero SCI/256- People‚ Science and the Environment Ms. Nathalie Basma July 30‚ 2013 Yellow Stone National Park “The human history of the Yellowstone region goes back more than 11‚000 years. From then until to the very recent past‚ many groups of Native Americans used the park as their homes‚ hunting grounds‚ and transportation routes. These traditional uses of Yellowstone lands continued until a little over 200 years ago when the first people of European
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* Use a spreadsheet to develop a point-scoring matrix and determine which system Mark should select. Software | | | Weighted Score | weighted score | weighted score | Fulfillment of business needs | 100 | | 600 | 800 | 900 | Acceptance in marketplace | 30 | | 180 | 180 | 180 | Quality of documentation | 50 | | 350 | 450 | 400 | Quality of warranty | 50 | | 200 | 400 | 350 | Ease of use | 80 | | 560 | 480 | 400 | Control features | 50 | | 450 | 350 | 450 | Flexibility
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A. 1. Net Operating Profit after Taxes (Operating Income x (1-Tax Rate) NOPAT for 2011 = 108.6 (1-.40) =$65.16 2. Net Operating Working Capital for 2011 is calculated through Taking your Current Assets less – Non-Interest Bearing Current Liabilities NOWC for 2011 = ($5.6 + $56.2 + $112.4) – ($11.2 + $28.1) = $134.9 million. 3. Net Capital for 2011 is calculated the sum of NOWC (already shown as) 134.9 million + Net Fixed Assets (2011 Projected PP&E) of 397.5 = Net Capital for 2011 of = $134
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DIGESTION OF CARBOHYDRATES Digestion of carbohydrate begins in the mouth‚ with the secretion of the enzyme salivary amylase from the serous cells of the salivary gland. This enzyme breaks starch and glycogen into disaccharides. The mucous cells of the salivary gland secrete a mucus‚ which causes the food to stick together‚ and acts as a lubricant to aid in swallowing. The salivary glands are grouped into three categories: the parotid gland‚ submandibular glands‚ and sublingual‚ all located
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include the teeth‚ tongue‚ salivary glands‚ liver‚ gallbladder‚ and pancreas. To achieve the goal of providing energy and nutrients to the body‚ six major functions take place in the digestive system ingestion‚ Secretion‚ mixing and movement‚ digestion‚ absorption and excretion. There are two kinds of organs that make up the digestive tract are the mouth‚ esophagus‚ stomach‚ small intestine‚ large intestine also called the colon - rectum‚ and anus all of which are hollow. Inside these hollow
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