THE KEY ROLES OF CELL DIVISION The ability of organisms to reproduce best distinguishes living things from nonliving matter. The continuity of life is based on reproduction of cells‚ or cell division. In unicellular organisms like amoeba‚ division of one cell reproduces the entire organism. Multicellular organisms depend on cell division for: — Development from a fertilized cell — Growth — Repair Cell division is an integral part of the
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Hook: Since the dawn of time man has consumed foods which were given to us by nature but now in the modern age we resort to consuming foods which were partly made in a chemist’s beaker. Direction of Arguments: Food additives have were in use for centuries in process of pickling or preserving using vinegar or salt but recently it has taken a turn for the worst invading almost all the processed foods we consume. Arguments: 1. Lead to physiological disorders 2. Are known to cause to foods to
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S. Philip Pachade AP Physics B Energy Conservation Lab 3/8/2014 Preamble After recently finishing up a take home test on the topics of energy conservation we were given an energy conservation lab for a deeper and more intricate analysis of the law of the conservation of energy. As previously mentioned by many physicists the law of conservation of energy states that energy cannot be created or destroyed‚ but
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Dry Wallum The dry wallum is a harsh environment that is battered by the sun and wind every day and with a base of porous sand; water availability is very scarce and must be conserved. The abiotic factors in the dry wallum are that the area is exposed to high amounts of sunlight which causes a loss of water in the leaves through transpiration. Since the wallum is so dry and hot; bush fires play a major cycle in the dry wallum which the trees have adapted to cope with. The roots of the plant and
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Gas exchange is a biological process that is essential for the survival of an organism. The purpose of this process is to obtain oxygen from the environment (which is necessary for cellular respiration‚ and to dispose of CO2‚ a bi product of respiration. An efficient gas exchange system has 3 requirements. It must have a large surface area over which the gases can diffuse. A large surface area maximises the amount of area available for the gases to exchange. It must also be moist. Oxygen must first
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Survival of the Sickest chapter two concentrates mainly on the disease named diabetes. The full scientific name is actually diabetes mellitus‚ or “passing through honey sweet” Diabetes is an extremely common and well known disease that becomes more and more common every day. The disease is based on sugar is the body‚ or glucose. When your body breaks down carbohydrates‚ it produces glucose‚ and essential sugar for the human body. There is a bodily function in which insulin helps the body use glucose
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away from lamp into L1 4. Press STAT 5. Press > to go into CALC 6. Press 1: 1-Var Stats and ENTER 7. Sx: 37.89 Standard Deviation = 37.89 Graph Graph: Relationship between
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G1‚ G2 & G3 // 5.1‚ 5.2‚ 5.3 5.1.1 Define species‚ habitat‚ population‚ community‚ ecosystem and ecology Species: A group of organisms that can interbreed and produce fertile‚ viable offspring Habitat: The environment in which a species normally lives or the location of a living organism Population: A group of organisms of the same species who live in the same area at the same time Community: A group of populations living and interacting with each other in an area Ecosystem: A community
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making the bacteria take on various phenotypic characteristics. Background Information: Genetic transformation is one of the most important processes in biotechnology. Essentially‚ genetic transformation involves the process where a cell (in this lab‚ a bacterial cell) takes up foreign DNA from its surroundings and incorporates it into its own DNA. This gene transfer is accomplished with the aid of a plasmid‚ a
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Biology form 4 – Chapter 5 Mitosis Mitosis is a division of the nucleus to produce two new daughter cells containing chromosomes identical to the parent cell. Significance of mitosis Growth- allows a zygote to produce more cell in order to grow Repair and replacement- allow the multicellular organism maintain its tissues‚ example skin cells and blood Asexual reproduction- clone The cell cycle divided into two major phases a. Interphase b. Mitosis Interphase is the period between division‚ divided
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