Bio 104-03 Lab #3- Acids Bases‚ and Buffers 1. An acid is a substance that releases hydrogen ions as they desolve in water and ranks lower than seven on the pH scale. An example of an acidic substance is lemon juice. A base is a substance that accepts hydrogen ions and ranks higher than seven on the pH scale. An example of a base substance is hand soap. A neutral substance ranks a seven on the pH scale and has equal concentrations of H+ and OH-. An example of this is pure water. Electrolytes
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light microscope‚ this experiment using the example of red blood cell and white blood cell. Red blood cells play an important role in your health by carrying fresh oxygen throughout the body. The oxygen gives your blood its bright red color. The cytoplasm of erythrocytes is rich in hemoglobin‚ an iron-containing biomolecule that can bind oxygen and is responsible for the red color of the cells. The cell membrane is composed of proteins and lipids‚ and this structure provides properties essential for physiological
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Figurative language Defining Type of figurative Examples of figurative language 4 Implications for teaching 3 Samples activities 3 “used in some way other than the main or usual meaning‚ to suggest a picture in the mind or make a comparison” (Longman Dictionary of English Language and Culture 1992: 475). Metaphor My love is a rose Rose Love Qualities of the rose Beauty Fragance Softness Carry over Qualities of the love Beauty Fragance Softness
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Essay Monique Braman 10/26/12 There are many colors in the world. Ever wonder what the most popular colors are? The top three popular colors are blue‚ purple an white. These colors are popular worldwide. They are all seen and known differently. Blue is the first and most common color. Around the world it is popular in seventeen different countries. Blue is a very calming color. It is seen as a very trustworthy and loyal color too many people. This color has an equal appeal
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selection Theory vs. Hypothesis Theory Broad pattern Series of supported hypotheses Hypothesis Scientific question Can be supported through experimentation * Cell Theory Discovery of cells First major conceptual breakthrough in bio Robert Hooke (1665) Discovered cells Cork (30x Magnification) Studied springs – similar to muscles Early 1800’s : all organisms consist of cells Pattern : cells exist in nature and are the basic constituent of all biological entities But where
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Factors That Influence the Reproduction of Sea Cucumbers by Angela Mackey (Biol 515 at SDSU‚ Fall 2001) Copyright © 2002 by Angela Mackey and Brian T. Hentschel (hentsche@sunstroke.sdsu.edu) INTRODUCTION The echinoderm class Holothuroidea consists of sea cucumbers‚ which can be described as worm-like organisms with elongated‚ soft bodies. Like most echinoderms‚ holothuroids have 5 rows of tube feet along their bodies. These tube feet aid the animal in attachment‚ locomotion and respiration (Pearse
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2Pac Biography By: Adel Mohammed Fakhry He ain’t that type of rapper; he aint that type of an actor‚ he ain’t that type of fame explorer‚ but he is that type of a legend‚ precisely a revolutionary legend. His music didn’t end up on just rhyming lyrics and mind blowing beat‚ but a message; to black people‚ to the world‚ to the whole universe‚ and the coming generations. This man had this dream‚ of spreading justice‚ equality‚ freedom‚ but government stood in his way‚ racists too. Trying to suppress
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21: The Immune System: Innate and Adaptive Body Defenses Objectives PART 1: INNATE DEFENSES Surface Barriers: Skin and Mucosae 1. Describe surface membrane barriers and their protective functions. Internal Defenses: Cells and Chemicals 2. Explain the importance of phagocytosis and natural killer cells in innate body defense. 3. Describe the inflammatory process. Identify several inflammatory chemicals and indicate their specific roles. 4. Name the body’s antimicrobial substances and describe
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State of the art on Bio-cutting fluids in Machining Submitted by: Abstract The increasing attention to the environmental and health impacts of industrial activities by governmental regulations and by the growing awareness level in the society is forcing industrialists to reduce the use of mineral oil-based metalworking fluids as cutting fluid. Cutting fluids have been used extensively in metal cutting operations for the last 200 years. In the beginning‚ cutting fluids consisted of simple
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observe? 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. 3. What would your experimental approach be to test this hypothesis? 4. What are the independent and dependent variables? 5. What would be your control? 6. What type of graph would be appropriate for this data set? Why? 7. Graph the data from the table above. Dissolved Oxygen (p21 8. Interpret the data from the graph made in Question
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