"Xylem" Essays and Research Papers

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    coconut oil

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      POSSIBLE HYPOTHESIS: The water will travel from the glass to the flower making it change color. OR The water will not travel up the flower and nothing will change.  POSSIBLE CONCLUSION: The water traveled up the xylem tubes to the flower petals. The color moves through the xylem allowing the color to be distributed throughout the cells of the petals causing their color to change.  B.) --Putting Toothpaste To The Test  PURPOSE: To find out if different brands of toothpaste remove different

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    Surface Area Lab Report

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    The tablet that was left whole had an average dissolving time of 5minites 12 seconds‚ the halves had an average of 4 minutes 13 seconds ‚ the thirds was an average of 4minutes 2 seconds and the last tablet‚ the quarters has the shortest time of 3 minutes 38 seconds My experiment was repeated three times‚ i did this as it helps to improve the reliability of my test. The test was as accurate as possible but of course no test is performed perfectly‚ there are always errors that occur and errors that

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    Biology X Icse

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    SECTION I (40 Marks) Attempt all questions from this Section Question 1 (a) Name the following: (i) The respiratory pigment found in erythrocytes. (ii) The organ that produces urea. (iii) The part of the chloroplast where the light reaction of photosynthesis takes place. (iv) The Vehicular Standard for controlling air pollution. (v) The part of the ovary that produces progesterone. [5] (b) State whether the following statements are true or false. If false‚ rewrite the correct form of the

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    Why do trees change color

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    Why Do Trees Change Color? Everyone relates the bright‚ scenic colors of the trees with fall. What most people don’t know is why. For this process‚ also known as photosynthesis to happen it involves three different pigments that give the leaves their color. Trees are autotrophs; this means that they make their own food. The leaves obtain water through their roots‚ but also they need sunlight‚ carbon dioxide‚ and chlorophyll. Chlorophyll is the pigment that gives leaves their green color and makes

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    Biology

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    the distribution of specialised tissue within them are adaptations to photosynthesis. Use clearly labelled diagrams in your answers. Water‚ air and glucose must move around the leave for it to photosynthesise. The water is transported through the xylem while the glucose is transported through the phloem. The epidermis allows the sunlight to readily penetrate through the leave for photosynthesis. 8) Explain the difference between mechanical and chemical digestion. Mechanical digestion is the

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    Keith B. Kofoed Biology 1407 Horizontal Gene Transfer Responsible for Carotenoid Production in Aphids Horizontal Gene Transfer Horizontal gene transfer (referred to as HGT for the rest of the paper) is said to have occurred when an organism successfully incorporates genetic information from another organism into its own genetic makeup when the first organism is not the offspring of the other organism. HGT‚ or lateral gene transfer (LGT)‚ is used to describe both the artificial and natural

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    Snab Revision Notes

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    1.1.1 In small unicellular organisms‚ substances move around slowly by diffusion. Diffusion is too slow to move substances round the larger bodies of multicellular organisms. They have a circulatory system: substances are carried in blood pumped by a heart. In a closed circulatory system (eg in vertebrates) blood is enclosed in narrow blood vessels. This increases efficiency: blood travels faster as a higher pressure is generated. Valves ensure blood flows in one direction:

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    Concept of Homeostasis

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    ® keep it simple science Copying is permitted according to the Site Licence Conditions only HSC Biology Topic 1 MAINTAINING A BALANCE What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. ENZYMES & HOMEOSTASIS 2. TEMPERATURE REGULATION 3. INTERNAL TRANSPORT SYSTEMS 4. EXCRETION & WATER BALANCE but first‚ an introduction... Living Things are Made of Cells Homeostasis All living things are composed of microscopic units

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    Cassava Paper

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    Cassava: Crop Report Throughout history there have been many important crops that have been detrimental to societies‚ but in recent history the Cassava plant has been one of the most important to people in Asia‚ South America‚ and Africa. To people in America‚ Cassava may be unknown‚ but its importance needs to be recognized. The characteristics of Cassava to grow in non-fertile places‚ have good nutrional value and also supply some of a countries economy make it unvalued around the world. Cassava

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    often used is called retting. Retting involves using water or micro-organisms to dissolve or rot away the cellular tissues surrounding the bast-fibre bundles. Afterwards the fibres are obtained; usually they extract very long sclerenchyma cells and xylem tissue because of their good tensile strength. From this many materials can be made‚ here are a couple of examples:  Wood fibres – can be used to make paper from trees  Sisal fibres – are obtained from Agave Sisalana and these fibres are used

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