Science Essays
4,476 Science Free Papers: 541 - 570
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Biohazards of Sewage Sludge
Wastewater can come from a variety of sources like homes, businesses, industries, runoff from roads, lawns and fields and is treated by municipal wastewater treatment facilities (Product, cornell). The solid material that remains after the treatment of wastewater is known as sludge (charac, cornell). Sludge can be employed in many
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Biological Species Concept
Biological Species Concept (BSC) What are biological species? At first glance, this seems like an easy question to answer. Homo sapiens is a species, and so is Canis familaris (dog). Many species can be easily distinguished. When we turn to the technical literature on species, the nature of species becomes
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Biological Species Concept
What are biological species? At first glance, this seems like an easy question to answer. Homo sapiens is a species, and so is Canis familaris (dog). Many species can be easily distinguished. When we turn to the technical literature on species, the nature of species becomes much less clear. Biologists
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Biological Techniques
1. (a) I. Plasmids are important tools in molecular biology. Plasmids are small circular DNA that has the ability to enter and replicate in bacterial cells and can be used as vectors to introduce foreign genes into bacteria for cloning and sequencing. Any gene must be inserted into an appropriate
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Biology
A gastric gland is a tubular structure in the vertebrate stomach that secretes gastric juices. The gastric glands have three types of cells that secrete different components of the gastric juice. One of them is being a chief cell, which is a rust color and is an inactive form
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Biology
CS5238 Combinatorial methods in bioinformatics 2004/2005 Semester 1 Lecture 8: Finding structural similarities among proteins (II) Lecturer: Prof Jean-Claude Latombe Scribe: Cheng Chi Kan, Lee Pern Chern and Moritz Buck 1 Voting scheme with hash table Many-to-many comparisons are evaluated when we align protein structures. In order to avoid repetition,
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Biology
1. The ability of ice to float because of the expansion of water as it solidifies is an important factor in the fitness of the environment. If ice sank, then eventually all ponds, lakes, and even oceans would freeze solid, making life as we know it impossible on earth.
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Biology
As I graduated high school, I thought college would just be yet another four years of high school, and I was wrong. College opens many new doors in a young man or woman's life. There are new responsibilities and pressures that you will have to deal with, and with more
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Biology
LIPIDS AND NUTRITION Lipids can be defined as molecules, synthesized by biological systems, which have , as a major part of their structure, long aliphatic hydrocarbon chains that may be branched or unbranched, may form carbocyclic rings and may contain unsaturated linkages. Lipids have been matter of health concern in
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Biology
Meet Lloyd Wright, Hepatitis C Survivor, Researcher and Author: I have an extraordinary love for life...When a battery of MDs advised me of the bleak path's Hepatitis C could take, I concluded, "I'm not finished yet!". If you want to live well, read the Hepatitis Information I have provided in
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Biology
2006 Bio153S Lab 6 Assignment Name: Student Number: Section and TA: The cranium: 1) What modifications do you see in the bird skull that suggest adaptations to the "avian lifestyle"? (2 marks) The modifications that are seen in the bird skull that suggest adaptations to the "avian lifestyle" would be
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Biology
Truth And Consequences Prospectus Worksheet Prepared by Dr. Gene Fenster, Biology Instructor, and Mary McMullen-Light, Writing Specialist Your name: For this portion of the project, you will need to locate the source material your project will be based on. You will need to find one source that makes a claim
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Biology
I have some bad news for UCLA fans: I'm about to kill your season by picking the Bruins to take the 2008 title. Please don't consider this a bandwagon pick, although it's true UCLA became my "favorite" college team, and I watched the Bruins more than every other '08 team
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Biology
Biology Assignment 11 1. Title: How Food Upsets Our Genes This video is from the list of suggested videos. 1. Since, I was born premature by almost one month, my mother always states that the reason I have a weak immune system is due to that reason. I suffer from
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Biology & Biomedical
The Cell: Smallest Living Level of Organization THE CELL - Smallest living component of biological systems. Two basic types of cells: Prokaryotic (no nucleus or other membrane-bounded organelles) Eukaryotic (nucleus and many membrane-bounded organelles). Some facts and structures of import in prokaryotes (organisms composed of prokaryotic cells): * prokaryotes are
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Biology - How Light Intensity Affects the Rate of Photosynthesis
Biology Coursework ÐŽV Does The Light Intensity Affect the Rate of Photosynthesis The Investigation In this experiment I will investigate the affect in which the light intensity will have on a plants photosynthesis process. This will be done by measuring the bubbles of oxygen and having a bulb for the
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Biology - Respiration Rate of Yeast Respiration
Biology-Respiration-Rate of Yeast Respiration Aim: An investigation to find out how temperature affects the rate of yeast respiration. Variables: Fixed variables: Through out the investigation I will keep the amount of yeast/glucose solution the same (50 ml). Also the amount of time I will run the experiment for at each
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Biology 101
Triszan Moore February 15, 2002 Biology 101 The compound light microscope is used for examining small or thinly sliced sections of objects under magnification that is higher than that of the binocular dissecting light microscope. The term light refers to the method by which light transmits the image to your
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Biology 1b Notes
CHAPTER 6 (Pg. 120-125) REVISIONS OF DARWIN'S THEORY NEO-DARWINISM * Most serious weakness in Darwin's theory was his failure to identify correctly the mechanism of inheritance. - He saw heredity as a blending phenomenon - Neo-Darwinism: Darwin's theory as revised by Weismann ~ Darwin's original theory(Lamarckian inheritance) was rejected by
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Biology 30 - Hemophillia
Hemophilia By Chelsea Stevenson Biology 30 Mr Friesen May 18, 2005 Hemophilia is a hereditary bleeding disorder. (1, 36)(2, 759)(3, 529)(5, ____) (6) (7) (8) (10) (12) (13) (14) Hemophilia is a disease where the blood does not clot normally. (1, 36)(3, 529)(2, 759)(5,____)(6)(10)(13) "Hemo" means blood and "philla"
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Biology Abstract - Alka Seltzer
Sammy Hassan Mrs. Droege Biology, 4B September 7, 2007 Surface Area to Volume Ratio S.Hassan, September 7. 2007 AISJ, Jeddah Saudi Arabia Surface area is known to be beneficial to keeping organisms alive it allows huge organs such as the intestines to fit in a small area by being coiled
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Biology Assessment
Part A: 2) Background information: Kidneys are located on the right and left side at the back of the abdomen (the middle part of the body) just below the chest and rib cage. The kidneys clean all blood in the body every two minutes. They do this by filtering the
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Biology Case
With over 130 recognized species Hymenoptera is one of the largest orders of insects. This order includes wasps, bees, and ants, and sawflies. Hymenoptera usually have two pairs of wings with well developed mouthparts to drink liquids. In some cases Hymenoptera have piercers that are several times the length of
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Biology Case
Evaluation : During this experiment there weren't a lot of problems because I was able to understand the topic and aim of it. But, I would encourage myself to increase the rate at which I work and to be able to concentrate whiles working. There were no faults in any
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Biology Cheat Sheet
Respiratory system-gets oxygen to cells of your body and getting rid of carbon dioxide and breathing; involves the formation of ATP within cells; made up of nasal cavity, pharynx, larynx, trachea, bronchi and bronchioles, and lung Path of air-taking in air through nose or mouth; flows into pharynx; passes the
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Biology Coursework: The Effect of Trypsin on Gelatine.
Implementing: - 1. First, I gathered the necessary equipment: § Thermostatically controlled water baths § Ice § Thermometer § Stop watch § Test tubes § Photographic film (b/w) § Syringe § Test tube rack § Ruler § Scissors § O.1% trypsin made in pH7 buffer solution § Mounted needle
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Biology Enzymes G.C.S.E
Is there a relationship between the quantity of enzymes and the rate of reaction with the substrate? Hypothesis Using my scientific knowledge my hypothesis is that as the quantity of enzymes increases so will the rate of reaction. Reasons for this hypothesis I am basing my hypothesis on a hypothesis
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Biology Essay
Three false assumptions that I had at the beginning of this class are that at first I just thought cells reproduced on their own, I thought cancer was just a bad illness that affected some people and I thought biology was just about microorganisms. I have learned that life begins
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Biology Evolution
Where are we coming from? Have you ever wondered who or what started the universe and life? How come the universe has a variety of living things and nonliving things? The universe could start from two different types of beginning, creation and evolution. God created the universe and let all
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Biology Extended Essay
Table of Contents Abstract................................................................................................2 Introduction.......................................................................................................................3 Theoretical Aspects.................................................................................4 Affects of light intensities on plant photosynthesis measured by the amount of oxygen produced...............................................................................................5 Experimental Aspects..............................................................................6 Factors that Affect the rate of photosynthesis.....................................................7 Investigating the Affect of Light on plant photosynthesis....................................8 Hypothesis..........................................................................................8.1 Variables............................................................................................8.2 Apparatus...........................................................................................8.3 Methodology.......................................................................................8.4 Results...............................................................................................8.5 A graph to show the Relationship between
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