unknown organisms provided by the instructor in a nutrient broth. It is only known that the two organisms are from vomit; one is gram-positive and the other is gram-negative. It is necessary to first separate the two organisms by inoculating a nutrient agar plate using the streak-plate method. The initial streak-plate procedure was performed and placed in the incubator at 37◦C for 24-48 hours. Upon observing the growth on this plate‚ it is fairly obvious that one of the organisms is Serratia marcescens
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northern.edu). Therefore‚ based on their lack of eyes and need for water‚ pill bugs generally tend to favor a darker‚ moist environment for an "optimal functioning" rate‚ however it is not completely "accepted" because pill bugs have been seen out in dry areas during periods of a
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Why is diffusion of innovation and technology important? When I think of diffusion of innovation and technology‚ I think of evolution or how a product‚ idea or theory goes from a thought in someone’s mind to an actual working process and then through time develops into better products to meet society’s needs and wants. Many times certain societies have a special trait‚ characteristic or ability that enables them to be great at certain types of technology or maybe they produce certain products that
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due only to Van der Waals forces that operate by induced polarity in non-polar molecules. Cohesion‚ along with adhesion (attraction between unlike molecules)‚ helps explain phenomena such as meniscus‚ surface tension and capillary action. Mercury in a glass flask is a good example of the effects of the ratio between cohesive and adhesive forces. Because of its high cohesion and low adhesion to the glass‚ mercury does not spread out to cover the bottom of the flask ‚ and if enough is placed in the
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Surface Waves: Understanding its movements I. Introduction We treat here an important wave phenomenon‚ the surface wave. It occurs in many physical systems both mechanical and electromagnetic. Mechanical surface waves can exist at the interface between two media with different densities such as the oceans and air. Ordinary sea waves and tsunamis are surface waves. Seismic events can produce both longitudinal and shear waves at the earth’s surface‚ resulting in earthquakes. Electromagnetic surface
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AP Biology Osmosis and Diffusion Lab I. Introduction: Diffusion is vital to many life functions of a cell‚ it allow the transportation of vitally important nutrients and compounds without the expenditure of excess metabolic energy. To explain diffusion‚ it is as if a bottle of perfume is opened at one end of the room‚ then in a short amount of time a person at the other end of the room can detect the scent of the perfume; this is the process of diffusion. Diffusion is a movement from a higher
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Success: Applying Rogers ’ "Diffusion of Innovations" Theory to Agroforestry MIRZA B. BAIG1‚ GARY S. STRAQUADINE†‚ MICHAEL R. WHITEMAN‡ AND M. AZHAR NAEEM¶ University of Guelph‚ Canada‚ current address: Allama Iqbal Open University‚ Islamabad‚ Pakistan †Utah State University‚ UMC– 1435‚ Logan Utah‚ USA‚ ‡University of Idaho‚ Moscow‚ Idaho–83844‚ USA ¶University of Arid Agriculture‚ Rawalpindi‚ Pakistan 1 Corresponding author’s e-mail: drbaig2@yahoo.ca ABSTRACT "Diffusion of Innovations‚" E.M. Rogers
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Data Set Pressure in kPa Volume in mL 1 150 20 2 100 30 3 75 40 4 60 50 5 45 60 6 40 70 Graph: [10 points] Create a graph of your data for this part of the lab. You may use any graphing tool to create the graph‚ but be sure to follow common guidelines for creating a graph. INSERT GRAPH HERE Conclusion: Answer the following questions after completing the lab. 1) Describe the relationship that you observed between pressure and volume in this lab. Refer to your data
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causing a catabolic reaction. Or two or more substrates are bonded to make one product causing an anabolic reaction. There are five factors that effect enzyme activity. They are: ·Temperature ·pH ·Inhibitors ·Substrate Concentration ·Enzyme Concentration The factor I am changing is surface area of potato containing Catalase. By increasing the surface area of the potato‚ you make more Catalase molecules be exposed to hydrogen peroxide. This will result in the rate of reaction increasing because
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Lab Activity No. __ Diffusion and Osmosis I. Introduction Diffusion is the transfer of molecules (or ions) from an area of higher concentration to a lower concentration‚ while osmosis is the transfer of water from a higher concentration to a lower concentration. II. Objectives 1. Demonstrate diffusion and osmosis across membrane. 2. Examine the relation of membrane permeability to diffusion and osmosis. III. Materials 2 thistle tubes‚ 2 big beakers‚ 4 tube clamps to fit iron stands
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