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Petri Dishes Bacteria Cells
1,566 wordsIn this lab we observed the growth of bacteria in a conjugation and transformation experiment. We expected the mating plate of the conjunction to grow and the bacteria on the transformation plates to grow also. We also practiced using aseptic techniques to clean the lab benches and to keep the bacteria from being contaminated from outside bacteria. This lab will take a total of 2 days because of the observations that need to be made. The parts of this paper will explain the procedure and the obs...
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Oceanic Crust Mid Ocean
1,629 wordster> Describe the frequency, origin and distribution of earthquakes at mid-ocean ridges, ocean basins, subduction zones and continental shields. Earthquakes are happening almost everyday all over the world. Most of the time earthquakes are not strong enough to be felt by people, but the shaking caused by an earthquake is recorded by a seismogram. These are located all over the world at different points. Only occasionally will a larger magnitude earthquake strike and cause damage to the...
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Biology Lab Report Genetic Exchange In Prokaryotes
679 wordsThis lab deals with the process of genetic exchange in prokaryotes. There are three main mechanisms of genetic exchange which include transformation, transduction, and conjugation. In transformation, DNA is released from cells in the surrounding environment which is then incorporated into the recipient cells DNA. In transduction, DNA is transferred through a virus to the recipient. In conjugation, genetic exchange occurs through direct contact with another cell and the plasmid is transferred fro...
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Mechanisms Of Genetic Exchange Transformation And Conjugation
1,530 wordsIntroduction Genetic exchange had been known to play a role in the evolution and survival of microorganisms. Genes of one bacterium can be exchanged to another through several different ways: conjugation, transformation and transduction. However, the focus of this paper is to further examine the characteristics of conjugation and transformation mechanisms. Transformation was first discovered in 1928 by Frederick Griffith while he was studying pneumococcal infection in mice. 1 In 1944, Avery, Mac...
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Tectonic Plates Oceanic Crust
1,370 wordsThe core is divided into two parts, the solid inner core and the liquid outer core. The inner core is thought to be solid and primarily made up of iron and some nickel. The outer core is all around the inner core and is believed to be made up of liquid iron mixed with liquid nickel. The outer core is about 2890 to 5100 km. The inner core is 5100 to 6378 km. Earths mantle is mainly composed of substances high in iron and magnesium. The melting point of every substance depends on the pressure and ...
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Tectonic Plates Molten Rock
689 wordsIn 1912, Alfred Wegener, a German scientist, was the first to notice this and develop the theory of plate tectonics. He noticed that the earth's continents fit together almost like a jigsaw puzzle. This, combined with the fact that similar fossils and rock types are found on different continents separated by large bodies of water, helped him formulate his conjecture. He contended that the plates at one point formed one large continent called Pangea, which allowed like fossils and rock types to b...
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Oceanic Crust Ocean Basins
1,875 wordsThe Cordilleran Orogeny The earths lithosphere can be divided into two major structural features: ocean basins and continents. Ocean basins, as we discussed in another essay, are formed at spreading ridges and consumed at subduction zones. The continents are a different story. How did the continents originate, and how have they changed over time? The origin of the earliest continental crust is still relatively obscure, but the evolution of the continents over time is not: the continents have cle...
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Oceanic Crust Shield Volcanoes
1,426 wordsVolcanoes Since the beginning of times, volcanoes were something that attracted human attention. Our ancestors often thought of volcanoes as places that powerful gods chose to make their home and they werent far from the truth. Volcano is a powerful exhibition of the might possessed by natural forces and the results of awakening such forces are often devastating. Today, volcanoes are a well-explored natural occurrence and theres even a science, called volcanology, which investigates this phenome...
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Bunsen Burner Degrees Celsius
1,031 wordsAim: Dunder Experiments Experiment 1. Aim: To find the PH of Dunder. Materials: -Crucible -Filtrated Dunder -Universal Indicator -Eyedropper Method: A small amount of filtrated Dunder is placed in the Crucible. A few drops of Universal Indicator are then dropped onto the Dunder with the Eyedropper. The mixture will then change to colour corresponding to the Dunder's PH. Results: In this Experiment the PH of the Dunder came up as 4. This showed that Dunder is considerably acidic. Experiment 2. Ai...
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Evidence To Support Continental Drift
1,020 wordsWe live in an extraordinary era of exploration. We are now able to reach far out into space and deep down into the ocean. We have the advantage with technology such as computers and satellites. We can now simply understand the dynamic forces that shape our Earth. Our Earth is constantly destructing and recreating. It balances through a continuous rebirth cycle. The Earth? s dynamic shape can be summed up very simply-Transfer Of Energy. This " Big Idea" helps to explain many things such...
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Earth Surface Plate Tectonics
1,732 wordsGive A Concise Account Of Plate Tectonics Give A Concise Account Of Plate Tectonics As They Operate On The Earth? s Surface Today? ? ? ? ? ? ? ? ? ? ? The earth can be divided into concentric layers. These can be distinguished from one another through varying chemical composition, temperature, density and phase. The inner most central body is called the core. This consists of two parts: the inner and outer core. The inner is understood to be solid due to the immense pressures, and the outer core...
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19 Th Century 20 Th Century
4,737 wordsPhotography is a technique of producing permanent images on sensitized surfaces by means of the photochemical action of light or other forms of radiant energy. In todays society, photography plays important roles as an information medium, as a tool in science and technology, and as an art form, and it is also a popular hobby. It is essential at every level of business and industry, being used in advertising, documentation, photojournalism, and many other ways. Scientific research, ranging from t...
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Oceanic Crust Continental Drift
780 wordsPlate tectonics are a relatively new theory that has revolutionized the way geologists think about the Earth. According to the theory, the surface of the Earth is broken into large plates. The size and position of these plates change over time. The hypothesis of continental drift was largely developed by the German Alfred Wegener The edges of these plates, where they move against each other, are sites of intense geologic activity, such as earthquakes, volcanoes, and mountain building. Plate tect...
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Miles Per Hour Earths Crust
3,134 wordsMount St. Helens Location: Washington, United States Latitude: 46. 20 N Longitude: 122. 18 W height: 2, 549 meters or 8, 364 feet 9, 677 feet before May 18, 1980 Type: Strato volcano Number of eruptions in past 200 years: 2 - 3 Latest Eruptions: Between 1660 - 1700, around 1800 - 1802, 1831, 1835, 1842 - 1844, 1847 - 1854, 1857, 1980 -? Present thermal activity: strong steaming Nickname: Mount Fuji of the West Remarks: continuous intermittent activity since 1980 with occasional eruptions of stea...
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Degrees Celsius P Amp
815 wordsTitle: Colony Transformation Lab Purpose: To study the behavior of Escherichia coli once it has been introduced to a foreign gene. Hypothesis: If the ampicillin resistant DNA is introduced into the E. coli bacteria, through the uptake of this DNA the bacteria will receive the resistant gene that will permit the bacteria to grow freely in the presence of ampicillin. Experimental Design: By observing the E. coli bacteria one can study how it reacts when a foreign gene such as the ampicillin resist...
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