Arteriosclerosis occurs when blood vessels called arteries‚ which transports blood from the heart to the rest of the body‚ becomes thick and hard preventing normal blood flow to organs and tissues. Normal healthy arteries which transports oxygen and nutrients in blood are flexible and elastic‚ however overtime can harden. (Mayo Foundation for Medical Education and Research‚ 2015) 1. Arteriosclerosis also termed hardening of the wall of the arteries can be generated by deposits of lipids on the inner
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adulthood As individuals age the human body experiences many physical and mental changes. Aging or senescence represents these changes that the human body goes through which diminishes the body’s capacity to regenerate making it vulnerable to illness and disease (Berger‚ 2008). According to Berger (2008)‚ “Gerontologists distinguish between primary aging‚ the universal changes that occur with senescence‚ and secondary aging‚ the consequences of particular diseases” (p. 620). The physical changes associated
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By the year 2050 the world’s population will reach 9.1 million. In order to feed this larger population food production must increase. And it demands high crop yield to provide food for all. For this purpose the use of chemical fertilizers and pesticides has been very high. Though satisfactory crop yield is obtained by the application of chemical fertilizers and pesticides‚ their use brings out certain disadvantages. These include pollution of large water resources‚ destruction of microorganisms
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why can’t we live forever? As we grow old‚ our own cells begin to betray us. By unraveling the mysteries of aging‚ scientists may be able to make our lives longer and healthier IF YOU WERE GIVEN a free hand to plan how your life will end--your last weeks‚ days‚ hours and minutes--what would you choose? Would you‚ for example‚ want to remain in great shape right up until the last minute and then go quickly? Many people say they would choose that option‚ but I see an important catch. If you are
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Four phases of development Early Childhood Early childhood describes the years from ages two to six. During early childhood‚ the body no longer grows at the rapid pace that it did during the first two years of life. On average children add two to three inches in height and about 5 pounds in weight each year (Berk‚ 2006).The weight increase is due mainly to increases in the size of the skeleton and muscular systems as well as some body organs. Consequently‚ posture and balance changes that support
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any source other than your fellow students. Show your work‚ use your own words and cite all references. 1. (14 points) The HeLa S3 cancer cell line is considered to be “continuous” due to acquired mutations that enable the cells to evade senescence. This property is one of several hallmark characteristics of cancer cell lines. Describe three hallmark characteristics of cancer cells and summarize the history of the HeLa S3 cell line (be sure to describe the origin of the cells‚ the approximate
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gibberellins must be present for development Brassinosteroids – inhibit root growth Abscisic Acid – inhibits growth Ethylene – gas that promotes fruit ripening‚ opposes some auxin effects Triple response enables the shoot to avoid the obstacle Senescence – the programmed death of certain cells or organs or the
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Paraquat‚ also called methyl viologen‚ is widely used by farmers as an herbicide (). Herbicides are known to control weeds by altering how they grow‚ by modifying the plants ability to make essential carbohydrates‚ lipids‚ and ultamatly preventing germination (if applyed before it turns into a seedling) (http://paraquat.com/knowledge-bank/crop-production-and-protection/mode-of-action-how-herbicides-work). Paraquat is used in a large variety of crops as it shows highly toxic effects to unwanted
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Hutchinson-Gilford progeria syndrome (HGPS) is a genetic condition that is characterized by the rapid appearance of aging beginning during the childhood of whomever is affected. Those affected typically look normal at birth‚ but then as they begin to grow the symptoms become more apparent. Hutchinson-Gilford Progeria Syndrome is an incurable premature aging disease caused by the accumulation of progerin. Progerin is a toxic Lamin A mutant protein and is most often generated by a silent point mutation
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THE STUDY OF CHLOROPHYLL CONTENT IN VARIOUS PLANTS A Project Report Submitted by SANDEEP SETHI In partial fulfillment of the CBSE GRADE XII IN BIOLOGY AT 2015-16 CERTIFICATE This is to certify that Sandeep Sethi of grade XII‚ ST. XAVIER INTERNATIONAL SCHOOL‚ BHUBANESWAR with Registeration Number _______________________ has satisfactorily completed the project in Biology on STUDY OF CHLOROPHYLL CONTENT IN FIVE DIFFERENT SPECIES OF PLANTS‚ in partial fulfillment of the requirements
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