Keystone species are species of animals that other species and the entire ecosystem depend on. Sea otters and elephants both play major roles in their ecosystems‚ as they are both keystone species. Without these two species‚ their ecosystems would have drastic changes in the environment in which many organisms and species would not be able to survive. If the sea otters and elephants were to leave the ecosystem it would cause a domino effect. The domino effect would make other species disappear
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drained soils‚ hydrophytic vegetation and various kinds of biological activity which are adapted to a wet environment. Are important habitats that provide homes for many endangered species and that they help to control floods and filter some pollutants. LOCATION Victoria has 10 wetland sites on the List of Wetlands of International Importance (commonly called the Ramsar Convention). These sites are covered by fresh or salt water and support diverse vegetation‚ bird and wildlife and include:
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variety of impacts on different regions around the world. The geographic features can change the way people live. For example MOST deserts have a hot‚ dry climate and has a limited supply of a water. However it is found that some desserts have vegetation and water found located throughout the desert so not all deserts are dry with no water. A positive impact it may have is that it can act as a natural barrier. So it may keep enemies out or make it harder for them to attack because of the dunes or
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a tropical rain forest biome‚ there are three layers. These layers include the top trees‚ followed by the canopy layer characterized by dens leaves hence low light penetration and the third layer are the ground layer. The ground layer lacks any vegetation owing to the low amount of sunlight reaching it due to the dense canopy layer. 2. Changes happening in Madagascar pose challenges to lemurs in the island. The main changes that affect the lemurs include the effects of agricultural activities on
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Bolsa Chica Wetlands Restoration Project Introduction The Bolsa Chica Wetlands is a reserve located near Huntington Beach‚ California‚ off the Pacific Coast Highway. The wetlands cover 1‚200 acres and inhabit a variety of species‚ including Herons‚ Blacked Neck Stilts‚ and Black Skimmers. The Wetlands also inhabit a variety of unique plant life‚ lizards and ground squirrels. We will be discussing the importance of maintaining
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hope‚ recovery‚ the rewards of faith‚ new growth” (P‚ I). The reader is asked to change his earlier preconception on rain clouds and realize that rain provides water which is a necessity in the Botswana desert. It is required to grow the crops‚ vegetation‚ and quench the cattle’s thirst‚ who provide the only source of income in the village. Moreover‚ the rain clouds symbolize the villagers of Golema Mmidi getting together once they realize through Makhaya and Gilbert that by co-operating they
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Mass Wasting (also Mass Movement): - is the down slope movement of earth materials under the influence of gravity. The detachment and movement of earth materials occurs if the stress imposed is greater than the strength of the material to hold it in place. - Mass movement is a naturally occurring process that contributes to the cycle of tectonic uplift‚ erosion‚ transportation‚ and deposition of sediments. They are responsible for the topography of mountain ranges and river
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Introduction Australia is frequently ravaged by bushfires‚ more so than any other country in the world. During the severe 2002-2003 season‚ which lasted from 1 July 2002 to 28 February 2003‚ there were 5999 bushfires recorded. There has been a long‚ dramatic history of bushfires on the continent‚ with fires first sparking around five million years ago when dry grassland began to dominate the landscape. Prior to this period‚ Australia was predominately composed of lakes‚ wetlands‚ rivers and rainforests
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Photosynthesis and Respiration Objectives: In this activity we will review the process of photosynthesis and cellular respiration‚ and become familiar with the use of a pH indicator for investigating these processes. Following this activity your group will generate a new research question about photosynthesis or respiration‚ and utilize the pH indicator system for the experiment that your group will design‚ implement and interpret. Introduction: Photosynthesis is the process by which plants and
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HVDC LIGHT TECHNOLOGY ABSTRACT [pic] Transmitting power at high voltage and in DC form instead of AC is a new technology proven to be economic and simple in operation which is HVDC transmission. The HVDC (High Voltage Direct Current) technology is used to transmit electricity over long distances by overhead transmission lines or submarine cables. It is also used to interconnect separate power systems. A further development in this technology is HVDC
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