Streak Plate Isolation for Obtaining Pure Cultures Data Interpretation 1- In order to unsure that you get a pure sample. 2-pure culture: laboratory culture containing a single species of organism. A pure culture is usually derived from a mixed culture (containing many species) by methods that separate the individual cells so that‚ when they multiply‚ each will form an individually distinct colony‚ which may then be used to establish new cultures with the assurance that only one type of organism
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How does the plate tectonics theory help explain the existence of fossilized marine life in rocks atop the Ural Mountains? Be sure to include a description of the specific process(es).’ Continental Collisions would be a possibility as this would birth mountain building. It is a theory that Europe and Asia collided millions of years ago. Marine life would have existed in the ocean basin between the land masses. As the continents approached‚ waters would recede from between them through subduction
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The Eatwell plate‚ originally designed by the Food Standards Agency‚ is the current food guide used within the UK to demonstrate the government’s dietary guidelines‚ using the visual representation of a plate to advise what constitutes a healthy balance diet (refer to figure 1). The plate is segmented into five food groups to assist in demonstrating the types of foods and the proportions which should be considered for a healthy balanced diet (Public Health England‚ 2014). Dietary Fats Dietary fats
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Plate tectonic is a scientific theory of Earth Science which basically defines the large scale motions of the atmosphere of the Earth. The Plate Tectonic theory is based on the continental drift concept The theory was first developed in the first decades of 20th century. According to the Plate Tectonic theory‚ the lithosphere breaks up into the tectonic plates. Currently‚ there are seven or eight major plates in the Earth. Generally‚ the lithospheric plates remain on the asthenosphere. All the
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Features Plate tectonics theory‚ which is the modern theory of the motions of Earth’s layer‚ explains how geological features‚ such as mountain ranges‚ continents‚ and bodies of water move and form. An important aspect of plate tectonics theory is that the outer layer of the earth is divided into plates which move across the earth’s surface. “These plates move relative to each other‚ typically at rates of 2-4 inches per year. As the plates move‚ they interact along their boundaries” (Plate Tectonics)
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boundaries by which an oceanic plate slides slowly under a continental plate into the Earth’s mantle‚ as the result of pressure and friction. After a long period of time the overriding continental plate is lifted up creating a mountain range. This is how the Himalayas were formed. Sometimes the extreme heat and pressure exerted on the subducting oceanic plate causes an uplift of magma from the mantle which rises above the surface‚ creating a volcano. When two plates are moving they don’t always slide
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Chapter One The theory of plate tectonics explains how forces within the planet create landforms. This theory views Earth’s crust as divided into more than a dozen‚ rigid‚ slow-moving plates. Some plates are as large as a quarter of the planet‚ but others are only a few hundred miles across. The plates slowly move across the upper mantle‚ usually less than an inch per year. Scientists use the theory of plate tectonics to explain the long history of Earth’s surface. They believe that about a few
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License plate flippers-robbers hate them Number plates being robbed is becoming one of the most common headlines for a local daily. As these can be sold off in the market for a huge sum‚ robbers‚ instead of stealing other car components‚ tend to pry these off. In addition‚ the license plates are easier to remove than any other component. How to save number plates? For saving number plate‚ the easiest bet is to purchase a hideaway license plate. These license plate come for either side of the car’s
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Earth’s mantle. Firstly‚ one place where tectonic activity occurs is at oceanic to oceanic constructive plate boundaries. Here two plates diverge or move away from each other‚ pushed apart by huge convection currents In the earth’s mantle. These convection currents are initiated by heat energy produced from radioactive decay in the earth’s core. As the convection currents move the plates away from each other‚ there is a weaker zone in the crust and an increase in heat near the surface. The hotter
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“Evaluate how plate tectonics theory helps our understanding of the distribution of seismic and volcanic events” (40 marks) The theory of plate tectonics was first introduced by Alfred Wegener in 1912. He observed the continents an could see they interlock like a jig saw puzzle‚ for example the West African Coastline fits snugly into the South American coastline‚ he suggested that at one point in time there was only one giant continent called “Pangea”. Later evidence was found that proved this theory
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