Organ Systems Project (Digestive‚ Excretory‚ Circulatory‚ Reproductive‚ Nervous) There is an enormous variety of life on our planet Earth ranging from simple cell bacteria to complex multicellular animals. Animals are creatures in the kingdom Animilia‚ one of the kingdoms in Whitakers 5 kingdom system. Their bodies consist of 555tanimal eukaryotic cells. Meaning their cell or cells contain a nucleus‚ are surrounded by a cell membrane (phospholipid bilayer) and can self-reproduce in a free
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Biology Revision summer 2012 1-Characteristics of living organisms Nutrition- taking in of nutrients which are organic substances and mineral ions ‚ containing raw materials or energy for growth and tissue repair ‚ absorbing and assimilating them . Excretion- the removal from organisms of toxic material‚ the waste products of metabolism and substances in excess of requirement . Respiration- the chemical reactions that break down the Sensitivity- The ability to detect or sense changes in the
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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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Place : mushroom unit ‚UPM Date : 7th October 2011 Time: 9am – 10 am Demonstrator : Mr Hasnul Hadi Bin Hussain Introduction Planting of mushroom is one of a venture that can conduct by the farmer in Malaysia. There are several factors that make mushroom plantation being more popular among Malaysian farmer. The factors are they can get highly income in a short period‚ next the operation cost is too cheap and the mushroom marketing is very wide‚ that is around the globe. In
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will only need to be sprayed once a week because of the long-lasting taste of garlic. This should not be applied close to harvesting time‚ seeing that this could affect the food flavors. Another strategy developed by agribusiness farmers to control nematodes is known as the drench. Garlic tea is used as a soil drench and effectively keeps Japanese beetles and carrot beetles out. Additionally it repels deer and rabbits from flowers in gardens. Lastly‚ simply growing garlic in between other plants can
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THE 5 KINGDOMS OF LIFE- the amazing diversity of living systems 1. the Monera The five-kingdom system of classification for living organisms‚ including the prokaryotic Monera and the eukaryotic Protista‚ Fungi‚ Plantae and Animalia is complicated by the discovery of archaebacteria. The prokaryotic Monera include three major divisions: The regular bacteria or eubacteria; the cyanobacteria (also called blue-green algae); and the archaebacteria. Lipids of archaebacterial cell membranes differ considerably
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multicellular‚ macro in size with complex organs‚ direct or indirect life cycle‚ and evolved to have specialized morpho-adaptation for parasitism. Metazoans include a diverse group of parasites‚ viz.‚ myxozoans‚ helminths (monogeneans‚ digeneans‚ cestodes‚ nematodes and acanthocephalans)‚ crustaceans (copepods and branchiurans) and hirudineans. Myxozoans Myxozoans are coelozoic and histozoic metazoan parasites with microscopic body size and structure. They are the most important group of parasites infecting
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The History of Cell Theory As we all probably know today‚ every single living being is made up by cells the building blocks of life. As much as we would like to take this fact for granted‚ we cannot help but acknowledge and remember the works and discoveries of earlier scientists which all contributed to our today’s understanding of the cell theory. The cell theory being; all living things are composed of one or more cells‚ cells are organisms’ basic units of structure and function‚ and cells
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Early Beginnings In the beginning of time humans believed that illness and disease was caused by super natural forces. Tribal doctors performed ceremonies to rid their patents of evil spirits. One of the ceremonies was trephining‚ trephining is where the doctor would remove a part of the brain with a primitive tool. They also used herbs and plants as medicines. Digitalis comes from the foxglove plant‚ it is used to strengthen and slow the heart rate. It was originally given where the patient
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The CELL THEORY‚ or cell doctrine‚ states that all organisms are composed of similar units of organization‚ called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859)‚ Mendel’s laws of inheritance (1865)‚ and the establishment of comparative biochemistry (1940). Ultrastructural research and modern molecular biology have
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