Livja Koka Anaerobic Bacteria In this experiment the purpose is to seek understanding between an organism and its use of oxygen. Oxygen is a very important part of the organisms’ survival. Oxygen has a tendency to form very reactive by-products inside a cell. These by-products create havoc by reacting with protein and DNA‚ thus inactivating them. Cells that are able to live in the presence of oxygen have evolved enzymes to cope with H2O2 and O2- and thus are not inhibited by O2. Also many anaerobes
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SOILS IN INDIA Soil is the uppermost layer of Earth’s crust. Soil is the medium in which plants grow and thus it supports the lives on earth. How soils are formed? Soils are formed due to the weathering of rocks. WHAT IS SOIL? Soil is the thin layer of loose mixture of small rock particles and rotting organic matter that covers much of the world’s land surface. SOIL FORMATION Soil formation is a very long process. It begins with the weathering of rocks into small fragments
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talking about how water can reach a new pH level by interacting with soil. If water has a pH that is too high or too low‚ it can be life threatening to aquatic species and can corrode metal structures. After finding this out‚ I decided to test if water could reach an extreme pH just by interacting with soil around it. The question for this experiment therefore became the following. Will interaction with soil change the pH of water? I hypothesized that if water interacts with soil for three days
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Soil Conservation Matrix Review the three major types of soil degradation occurring in the environment. Briefly explain how each type of damage occurs. Causes Consequences Solutions Soil Erosion Water‚ wind‚ and people. (Miller‚2005 p.279) ●Soil erosion has two major harmful effects. One is loss of soil fertility through depletion of plant nutrients in topsoil. The other harmful effect occurs when eroded soil ends up as sediment in nearby surface waters‚ where it can pollute
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Soil Microbe Lab Antibiotics are chemicals produced by substances that kill or inhibit the growth of bacterial cells (Hurney et al 2013). These microbes‚ such as bacteria found in the soil‚ may seem like they would be harmful to the human body because they attack cells‚ however they are very efficient at only attacking the bacterial cells. Actinomycetes are one of the more common groups of these soil microbes known to produce antibiotics. Antibiotics work because they target specific aspects
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Report –Soils Soil ph Soil texture Soil organic matter Soil water retention Two soil samples were consistently used for all four test completed below. The first is labelled as Valley A‚ and was obtained from a field which has been known to be uncultivated for 10 years in the valley. Valley B was obtained from a domestic garden‚ under a Magnolia tree in the same region. At times when a third sample was tested‚ the source will be indicated. Soil texture
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Soil Erosion And Conservation SOIL EROSION AND CONSERVATION Erosion Erosion is the removal of soil particles by the motion of wind or water. Soil erosion is one of the major concerns of modern agriculture throughout the world. The fallowing contributes to soil erosion: Misuse of land‚ Mismanagement of arable land‚ Indiscriminate felling of trees‚ Overgrazing‚ Poor soil and water management Erosion causes or Results in a: Decline in soil fertility‚ Water supply‚
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Activity 1 – Water Holding Capacity & Capillary Action of Soil 1. Grain size and the amount of air space between particles. 2. Water-holding capacity determines the amount of water a soil is capable of holding. Since water is a necessity of any agricultural endeavor it is important for a soil to have a good water holding capacity. 3. We’d add humus because it has the highest water-holding capacity. 4. It would benefit plants in a dry climate because it could easily take groundwater
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between a gram positive bacteria and gram negative bacteria is the differences in cell wall composition. Prokaryotes known as eubacteria have three basic forms: rods‚ cocci and spiral. The bacterial cell wall is the single most important contributor to cell shape. In addition to shape of cell wall‚ presence or absence of flagellum‚ and if present‚ positions of flagellum‚ the eubacteria can be classified according to Gram Stain. First and foremost‚ gram positive bacteria are by and large dark
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Soil Management in Konkan Introduction to soil management Soil is non renewable natural resource which supports life on earth. It needs to be managed successfully to support sustainable development. It is growing in economic importance because of a broader environmental agenda. Poor soil management in many regions‚ including parts Konkan and western Maharashtra‚ has progressively degraded productive soils. This is putting our food security at risk in the context of a growing and increasingly
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