correct. High Power should show only a couple of cells that take up most of the viewing field. The micoscope is designed to view the slide at different spots‚ so not all drawings will look like this one. Images were snipped from the virtual microscope’s flash animation. Scanning (4) | Low (10) | High (40) | 3. Go to google and type "cheek cells" into the search box. Click on "images" to see all the images google has found on the web showing cheek cells (there should be hundreds). What do all of
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The Impact of Stress on Academic Performance In today’s world stress is something that is unavoidable .It is something that is faced by adults ‚teenagers and kids around the world .Stress is often described as a feeling of being overloaded ‚ wound up tight ‚ tense and worried . Stress can sometimes help to motivate us to get a task finished or perform well . But stress can also be harmful if we become over-stressed and it interferes with our ability to get on our normal life for too long .(A
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Bacterial cells are Prokaryotic cells. These cells have several internal structures and surface structures. The cell walls are of two types‚ gram positive and gram negative. Out of all the structures‚ the two selected structures are the cell- wall and endospores. The cell- wall of bacterial cells is found in three distinct shapes such as spherical‚ spiral and rod shaped. The cell wall of the bacterial cells is composed of the proteins and polysaccharides. This is collectively called peptidoglycan
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whether those conditions be real or perceived‚ positive or negative. Although everyone has stress in their lives‚ people respond to stress in different ways. Some people seem to be severely affected while others seem calm‚ cool‚ and collected all the time. Regardless‚ we all have it. It’s also important to note that there are two types of stress‚ Eustress (good stress) and Distress (not so good stress). Stress in humans results from interactions between persons and their environment that are perceived
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Common type of stress that affecting college students There are many definition we could define from the word of stress itself‚ according to the Oxford Dictionaries Online (http://oxforddictionaries.com)‚ stress could define as “a state of mental or emotional strain or tension resulting from adverse or demanding circumstance”. But stress could be best describe as‚ “a physical or psychological response due to an events or circumstances that make the person feel threatened or upset the balance of
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Title: High living standard causes stressful lifestyle Stress is a term which describes a person who could not cope with the tension (or pressure) in its lifestyle. Despite the fact that there are several reasons which may cause an individual to have a stressful lifestyle including high standard of living in some countries. In this essay it will describe how high standard of living could cause a stressful lifestyle. What does the word ‘stressful lifestyle’ means in general? In spite the
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The Nervous System: Membrane Potential 1. Record the intracellular and extracellular concentrations of the following ions (mM/L): Intracellular Extracellular Sodium (Na+) Potassium (K+) Chloride (Cl–) 2. Excitable cells‚ like neurons‚ are more permeable to ___________ than to ___________. 3. How would the following alterations affect the membrane permeability to K+? Use arrows to indicate the change in permeability. a. An increase in the number of passive K+ channels
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Diffusion through a Membrane Introduction Molecules are constantly moving. They move in straight lines unless they are deflected by other molecules or obstacles in their environment. Diffusion is the process by which the collisions between molecules cause them to continually spread apart from each other. Their movement can be described as movement from an area of greater concentration to an area of lower concentration. Diffusion continues until the molecules are equally distributed
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Physiology 168 March 14‚ 2014 Diffusion across a Selectively Permeable membrane Introduction: Diffusion is movement of molecules from one area of concentration to another. This process is vital for the life functions of cells. Cells have selectively permeable membranes that allow only certain solutions to pass through them. Osmosis is a special kind of diffusion that allows water to go through semi-permeable membranes of high water potential to a region of lower water potential. Water potential
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Stress Effects and Management Report Stress is an inevitable part of life. Although everyone experiences stress in some form‚ each person has a different reaction to his or her stress. The varying responses to stress depend upon methods used by the individual to relieve the pressure or tension from them. I will define the four components of psychosocial health and why they are important. Donatella (2010)‚ identified various methods used to manage stress. I selected visualization as a new tool to
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