A forest is an area with a high density of trees. There are many definitions of a forest‚ based on various criteria. These plant communities cover approximately 9.4 per cent of the Earth’s surface (or 30 per cent of total land area) and function as habitats for organisms‚ hydrologic flow modulators‚ and soil conservers‚ constituting one of the most important aspects of the Earth’s biosphere. The emerging trends of deforestation‚ desertification and soil erosion are closely linked with societal
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* NCERT 1. Reproduction in Organisms INTRODUCTION Biology in essence is the story of life on earth. While individual organisms die without fail‚ species continue to live through millions of years unless threatened by natural or anthropogenic extinction. Reproduction becomes a vital process without which species cannot survive for long. Each individual leaves its progeny by asexual or sexual means. Sexual mode of reproduction enables creation of new variants‚ so that survival advantage is enhanced
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this tissue type are storing fat‚ repairing tissue damage and protecting us against diseases. Muscle Tissue This tissue is made up of a large number of cells. There are three different types of muscle tissue and each of these three has their own function: 1. Skeletal: This type of muscle tissue covers your Skeleton to give your body its shape. 2. Smooth: This type of muscle tissue works by contracting in order to do things such as pushing food through our bodies. 3. Cardiac: This type of
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The Effects of Soccer Headings on Brain Structure and Function Although often overlooked‚ concussions could be one of the biggest injuries a soccer player could front in their career. Many athletes in contact sports focus on showing their skills‚ getting playing time and ignored what the body was telling them to do. Most of the times‚ athletes were brushing off the injuries because they were feeling normal about it‚ particularly in sports like soccer. Soccer was the most popular sport among children
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How Primary Structure Determines Protein Function Proteins are everywhere. As enzymes‚ they catalyse chemical reactions. There are many different types of proteins: carrier and channel proteins which transport substances‚ receptor proteins which are recognition site for antibodies and hormones‚ structural proteins which support cells and tissues‚ and hormones which transmit information. Proteins are big molecules with large molecular masses that are made up of many amino acids; they’re‚ essentially
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Chapter 15 Accounting in a Global Market QUESTIONS 1. Foreign currency exchange rates are used to express transactions in local currency in terms of U.S. dollars and vice versa. For example‚ if the exchange rate is $1 = 1.65 DM (Deutsche mark)‚ and if one wishes to change 100 U.S. dollars into Deutsche marks‚ one will receive $100 ( 1.65 = 165 DM‚ and if one wishes to change 100 DM to U.S. dollars‚ one will receive 100 DM/1.65 = $60.61. 2. A foreign currency transaction occurs when a transaction
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The Forest - Creative Writing Essay For English - The Forest There’s a forest bordering the town that I live in. The adults refuse to go near it or talk of what lies within. From the time we consciously understand our parents teach us not to step foot in there because the “Unmentionable Monsters” will get you. Of course as kids with wild imaginations we made our own predictions about what it could be. The Boogie Man‚ Dracula‚ werewolves‚ ghosts‚ and all sorts of other ghouls came to mind. These
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FOREST ECOSYSTEM Submitted by: Submitted to: Forest Ecosystem Table of Contents (Outline) I. Introduction II. The Structure of Forests III. Kinds of Forest IV. The Distribution of the Forests V. Forests Succession VI. The History of Forests VII. Deforestation VIII. Conclusion IX. Endnotes X. Bibliography Forest Ecosystem I. Introduction A forest‚ also referred to as a wood or the woods‚ is an area with
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BENEFITS OF FOREST RESOURCES A forest‚ also referred to as a wood or the woods‚ is an area with a high density of trees. As with cities‚ depending on various cultural definitions‚ what is considered a forest may vary significantly in size and have different classifications according to how and of what the forest is composed. A forest is usually an area filled with trees but any tall densely packed area of vegetation may be considered a forest‚ even underwater vegetation such as kelp forests‚ or non-vegetation
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carbon dioxide from the tissues back to the lungs. In order to function most efficiently‚ haemoglobin needs to bind to oxygen tightly when the oxygen concentration is high in the lungs and be able to release oxygen rapidly in the relatively low partial pressure in the tissues. I will be comparing the structure and function of haemoglobin with the structure and function of collagen‚ which is a structural protein. Collagen’s functions are quite different from those of globular proteins such as enzymes;
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