Science
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4,609 Essays on Science. Documents 571 - 600
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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 different ways, it can be used as a soil additive or growing medium, sent to a composting facility, incinerated or landfilled (Char, cornell). Biosolids are
Rating:Essay Length: 1,011 Words / 5 PagesSubmitted: December 23, 2009 -
Biological Aspects of Beauty
“The Biology of Facial Beauty”, an article from the International Journal of Cosmetic Science, states that it is common misconception that beauty is unsystematic. In fact, due to the contributions of biology, beauty is very predictable despite various factors, such as nationality, age, and race (317). This article is captivating and informative. Nevertheless, it could be improved by establishing a more clear-cut thesis and only selecting a few biological aspects of beauty to research and
Rating:Essay Length: 999 Words / 4 PagesSubmitted: February 15, 2010 -
Biological Determinants
Biological Determinants -Relates to how the structure of cells, tissues, and systems of the body and hoe adequately they function Body Weight: can impact on health and influence other biological determinants. Obesity in crease the risk of developing: High Blood Pressure Cardiovascular Disease Type 2 Diabetes Self-esteem issues and Depression Assessments about body weight are determined using BMI and waist circumference measurements. women who have a waist circumference of 88cm or greater, and men who
Rating:Essay Length: 857 Words / 4 PagesSubmitted: March 22, 2016 -
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 offer a dozen definitions of the term "species". These definitions are not fringe accounts of species but prominent definitions in the current biological literature. Philosophers
Rating:Essay Length: 1,323 Words / 6 PagesSubmitted: February 1, 2010 -
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 much less clear. Biologists offer a dozen definitions of the term "species". These definitions are not fringe accounts of species but prominent definitions in the
Rating:Essay Length: 1,413 Words / 6 PagesSubmitted: March 17, 2010 -
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 location of a plasmid to be expressed. The importance of a plasmid is in the step of cloning and sequencing when the construction of a
Rating:Essay Length: 436 Words / 2 PagesSubmitted: December 20, 2009 -
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 combined. Up until two weekends ago, I didn't think they had enough to win six straight March Madness games because of the way they struggled
Rating:Essay Length: 936 Words / 4 PagesSubmitted: November 23, 2009 -
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 Triumph Over Hepatitis C, my book which describes how alternative medicine saved my life! Product information and ordering are combined to reduce confusion. Inside our
Rating:Essay Length: 293 Words / 2 PagesSubmitted: January 2, 2010 -
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 you would like to investigate. Choose a topic you find interesting because you will be working with it for the rest of the semester. You
Rating:Essay Length: 403 Words / 2 PagesSubmitted: January 21, 2010 -
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 freedom these responsibilities and pressures can be difficult to handle. College has changed a great deal over the years and these changes, such as more
Rating:Essay Length: 1,011 Words / 5 PagesSubmitted: February 12, 2010 -
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. During the summer, only the upper few inches of the ocean would thaw. Instead, when a deep body of water cools, the floating ice insulates
Rating:Essay Length: 3,608 Words / 15 PagesSubmitted: March 12, 2010 -
Biology
Introduction: Respiration commonly known as the inhalation and exhaling or breathing has a more little known definition. This is the definition that involves the cellular level of eukaryotic cells. Cellular respiration may best be described by the following equation: C6h1206+602-6CO2+6H20+36ATP. ATP that is the energy needed for a cell to function as part of cellular respiration. ATP is needed to power the cell processes. If cells are denied energy they will die. The second law
Rating:Essay Length: 648 Words / 3 PagesSubmitted: April 8, 2010 -
Biology
Villus A villus is a tiny, thin, fingerlike structure with a blood supply that sticks out from the surface. More than one villus is known as villi. Villi are located in different areas of the body. Most commonly, the term is used to describe the many tiny, fingerlike structures that stick out and are located in groups over the entire mucous surface (a type of thin sheet of tissue) of the small intestine. The intestine
Rating:Essay Length: 812 Words / 4 PagesSubmitted: April 9, 2010 -
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, a better organization of computation is necessary. This could be achieved by pre-computing the indexes of proteins and arranging them in a hash table. Then,
Rating:Essay Length: 296 Words / 2 PagesSubmitted: May 13, 2010 -
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 unicellular or colonial--there's no division of labor among cells. * prokaryotic organisms are commonly called "bacteria," although not all prokaryotes are true bacteria. Close enough
Rating:Essay Length: 1,630 Words / 7 PagesSubmitted: December 5, 2009 -
Biology - Cocaine Use
Ej King III 10/9/13 BIOLOGY Cocaine use can make otherwise resistant immune cells from getting HIV Recent studies show that using cocaine can help the immune system defend against HIV. Scientists say out of a 14 to 0 chance this will succeed but there is also side affects of using cocaine such as highness, feeling of high ecstasy for no reason. But their has been little effort taking place in this research. Dr. Dimitrios Vatakia
Rating:Essay Length: 378 Words / 2 PagesSubmitted: December 16, 2015 -
Biology - How Light Intensity Affects the Rate of Photosynthesis
Biology Coursework ЎV 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 light intensity variable. Variables The input variable which will be used in this investigation will be the light intensity (this will be a 100Watt bulb
Rating:Essay Length: 2,402 Words / 10 PagesSubmitted: May 29, 2010 -
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 reading will remain constant at 1 minute. The one other thing I will keep the same is the concentration of the Glucose as we are
Rating:Essay Length: 2,285 Words / 10 PagesSubmitted: November 10, 2009 -
Biology 10 Resource
________________ Biology 10 Notes/Resources: Justin Kim Cell Theory and Cell Types (Diagramming) Cell Theory has 3 basic principles: * All living things are made of cells (except viruses) * All life functions (e.g. respiration) occurs within cells * All cells come from previous cells via asexual or sexual reproduction There are 2 types of cells: * Prokaryotes: simple cells without nuclei (e.g. bacteria) * Eukaryotes: more complex organelles with nuclei (e.g. skin cells) 1. As
Rating:Essay Length: 3,413 Words / 14 PagesSubmitted: May 31, 2015 -
Biology 1130 - the Effect of Competitive Inhibitors on Catechol Oxidase
The Effect of Competitive Inhibitors on Catechol Oxidase Alejandra Ramos Biology 1130 Section: 283 Abstract The Effects of competitive inhibitors on Catechol Oxidase. Nicholas Siepert, 2015, Functional Biology, Texas State University, San Marcos, TX 78666. Catechol Oxidase is an enzyme responsible for the defense mechanism plants, fruits, and vegetables have to change in pigment, in this case melanin, when bruised, cut, or exposed to other environmental factors. In this experiment, a competitive inhibitor-chemicals that delay
Rating:Essay Length: 1,540 Words / 7 PagesSubmitted: November 3, 2015 -
Biology 12 Ulcer Buffer Lab
Biology 12 AP - Ulcer Buffer Lab Purpose: To observe and compare albumin or alka-seltzer’s ability to control pH levels, in order to see which would be a better buffer and therefore a better treatment for a stomach ulcer. Hypothesis: The Alka-Seltzer drug may work better, because it would mostly likely be more basic than the albumin seeing as it contains baking soda as one of its key components which is often used to neutralize
Rating:Essay Length: 501 Words / 3 PagesSubmitted: December 16, 2017 -
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 and packed together tightly. This experiment looked if the surface area to volume ratio affected the speed of a chemical reaction. For this experiment, a
Rating:Essay Length: 260 Words / 2 PagesSubmitted: November 29, 2009 -
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 epiglottis; moves through larynx; goes down windpipe trachea; bronchi; lead into lungs Trachea-tube like passageway that leads to two bronchi tubes; windpipe Epiglottis-piece of skin
Rating:Essay Length: 659 Words / 3 PagesSubmitted: December 13, 2009 -
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 known as the ‘lock and key hypothesis.’ It explains that when an enzyme substrate complex forms by means of a spontaneous reaction the substrate fits
Rating:Essay Length: 2,418 Words / 10 PagesSubmitted: February 28, 2010 -
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 kinds of living and nonliving things exist together which shows creation. Evolution is based on changes occur within organisms from one generation to the next,
Rating:Essay Length: 1,131 Words / 5 PagesSubmitted: January 12, 2010 -
Biology Exam Notes
Biology The cell: prokaryotes & eukaryotes Prokaryotes: small, basic cell, free floating mess called nucleoid= bacteria Eukaryotes: advanced, larger cell, bound membrane organelles= plant/animal cells 1= cell: heart muscle cell 2= tissue: heart muscle tissue 3= organs: heart 4= organ systems: circulatory system 5= organism: deer Tissue: a group of specialized cells that work together to help perform a specific function= nerve tissue, muscle tissue, epithelial tissue Organs: a group of specialized tissue that work
Rating:Essay Length: 547 Words / 3 PagesSubmitted: September 17, 2016 -
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 light and the rate of photosynthesis….....9  Analysis & Conclusion………………………………………………………....9.1  Extension Hypothesis  Variables  Materials  Methodology  Analysis & Conclusion Conclusion Bibliography
Rating:Essay Length: 3,192 Words / 13 PagesSubmitted: December 6, 2009 -
Biology Final Review
Unit 5: Evolution * Evidence of Evolution * Fossils: The fossil record provides some of the strongest evidence for evolution, it shows that organism have evolved in a historical sequence * Prokaryotic cells are the oldest know cells * The oldest known fossils are about 3.5 billion years old * Multi-cellular fossils are the more recent fossils * Biogeography: The study of past and present distribution of organisms * Comparative Anatomy: The comparison of different
Rating:Essay Length: 2,295 Words / 10 PagesSubmitted: October 13, 2015 -
Biology in Our Backyard
When comparing the biodiversity and number of trees of the same species in an equal size area of Brazilian rainforest and a temperate decidious forest in NE United States the results from the two sites will vary greatly. The number of different species of trees in the rainforest will greatly out number the the temperate decidious forest, while on the other hand the number of trees per species in the temperate decidious forest will greatly
Rating:Essay Length: 475 Words / 2 PagesSubmitted: November 22, 2009 -
Biology Investigation: Investigating the Effect of Catalase Concentration on the Speed of Reaction with Hydrogen Peroxide
Biology investigation: Investigating the effect of Catalase concentration on the speed of reaction with Hydrogen Peroxide Planning 2 Aim: 2 Prediction 2 Research 2 What is Catalase? What does it do? 2 How could I measure the rate of reaction? 3 Is this method viable? 3 How can I make sure that my results are fair? 4 How will I control my variables? 6 What are the risks? 7 Method 7 Equipment 7 What
Rating:Essay Length: 250 Words / 1 PagesSubmitted: December 25, 2009