Ecological succession is defined as a series of transitions in species composition over ecological time. The process of succession is termed primary succession when it involves establishment of a community in a newly-formed habitat where even soil does not exist‚ such as on a volcanic island or on the rubble left behind by a retreating glacier - imagine Long Island just after the last glaciers receded - the process of a community of organisms becoming established on the pile of bare rock that formed
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nitrogen is obtained from dead organic materials such as Amino Acids. The first step in this process is nitrogen being released from the amino acid. This process is known as ammonification. Alanine is used as an organic source because it is found in humus‚ which is dead organic matter. The Alanine is decomposed into simpler compounds by soil-dwelling saprophytic bacteria and different fungi. They incorporate the nitrogen from amino acids and proteins and release the excess nitrogen in the form of
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Latesha Hansley Nekesha B. Williams Environmental Science 200 28 February 2015 Extra Credit Assignment #1 - Permaculture In the documentary “Green Gold” by John D. Liu‚ he interprets an ideal world notion in stimulating details on how collaborations can be well established between humanity and landscapes that has a bounty of biomass and aridity areas. Although the Earths resources are limited‚ every twelve years the population continues to increase by a billion. Mankind can rehabilitate
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animal dies‚ scavengers like vultures and wolf prey on dead animals and leave the remaining to be decomposed by other organisms. Some insects and micro-organisms eat up the dead and decaying matter and convert it into black-colored substance called humus. Such organisms are known as decomposers and play a role in providing the soil with natural compost. Hence‚ there is no wastage in a forest. Green lungs: Forests are also known as green lungs‚ as they maintain a perfect balance between oxygen and
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These factors expressed in the question affect the population density of a country or location immensely. Firstly relief‚ when we talk about the relief we talk about highlands and lowlands. Although immediately we like to think that most of the world’s population live fairly low down it is in fact the case that 80% of the worlds population live 500 metres above the sea level‚ this is actually fairly high up. What we might have been thinking of are the mountainous areas of the world like the Andes
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The soil of the savanna is porous‚ with rapid drainage of water. It has only a thin layer of humus‚ which provides vegetation with nutrients. Savannas are sometimes classified as forests. Savanna is grassland with scattered individual trees. Savannas of one sort or another cover almost half the surface of Africa and large areas of Australia‚ South America‚ and India. Climate is the most important factor in creating a savanna. Savannas are always found in warm or hot climates where the annual rainfall
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------------------------------------------------- ASSIGNMENT: 1 ------------------------------------------------- DUE DATE: 22ND MARCH 2013 CASSAVA Cassava is the most important suppliers of calories in the diets. Cassava is grown mainly by small farmers in Fiji and is consumed boiled and fried or in soup. There are more than 40 varieties of cassava. Recommended Local varieties: Maracas Black Stick‚ White Stick‚ Butter Stick‚ Blue Stick and Butter Stick The best climatic factor required for
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A COMPARATIVE STUDY ON THE (NITROGEN PHOSPHORUS POTASSIUM) NPK CONTENT OF VERMICAST USING DIFFERENT FEEDING MEDIA In Partial Fulfillment of Science Investigatory Project in Research II Submitted to Mr. Julius I. Centina Digos City National High School Digos City SY 2008-2009 Proponents: Angoy‚ Mel Angelic M. Esma‚ Romelyn A. Paciones‚ Lourenz Aubrey Marchelle A. Patac‚ Jessa Kristy S. Segovia‚ Demelyn Marie G. January 2009 INTRODUCTION Background of the Study In our
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CROP PRODUCTION AND MANAGEMENT Types of Crops Soil Preparation Sowing Harvesting Fertilisers Insecticides All living organisms require food. Plants can make their food themselves. Animals including humans can not make their own food. The energy from food is utilized by organisms for carrying out their various body functions‚ such as digestion‚ respiration and excretion. We get our food from plants‚ or animals‚ or both. In order to provide food for a large population— regular
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BARBADOS Barbados is made up pf over 85% coral limestone CLIMATE Tropical climate therefore the heat increases rates of chemical weathering and it promotes high biological activity such as the rapid decay and formation of humic acid DRAINAGE Barbados has a high drainage density and this allows for water to easily percolate through the coral limestone and this increases chemical weathering TOPOGRAPHY Flatlands - St Lucy A wide flat region stretching across the northern part of the island. Uplands - Central
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