Biology essays
Last update: December 23, 2015-
The Biology of Addiction in the Brain
The Biology of Addiction in the Brain By Darryl Calloway Dr. John Redmond Walden University February 20, 2011 Abstract There are an alarming high number of individuals that are now receiving some form of treatment for drug addiction. Drug addiction is now being diagnose as a sever disorder. More and more research is reveling a correlation between the drug addiction and the brain. We will focus upon the biological affect of drugs, identify the five
Rating:Essay Length: 2,619 Words / 11 PagesSubmitted: May 16, 2011 -
Discuss the Role of Endogenous Pacemakes in Biological Rhythms
A biological rhythm can is as any change in a biological activity that repeats periodically. They include rhythms with a frequency or periodicity of less than one day (ultradian), those with a periodicity of approximately one day (circadian), and those with a periodicity of greater than one day (infradian). These biological rhythms are most often synchronized with daily, monthly, or annual cyclical changes in the environment. These external factors affecting biological rhythms are known as
Rating:Essay Length: 647 Words / 3 PagesSubmitted: May 17, 2011 -
Cells Contain Various Biological Molecules Such as Sugars and Salts
* Since cells contain various Biological Molecules, such as Sugars and Salts, they have a Water Potential lower then 0 kPa. Water may move in or out of a cell depending of the Water Potential Gradient between the inside of the cell and its environment. * When water diffuses into a plant cell, when it is placed in a solution of higher Water Potential than inside it, the cell contents will expand. However, since plant
Rating:Essay Length: 662 Words / 3 PagesSubmitted: July 14, 2011 -
Biological and Humanistic Approaches to Personality (spanish)
Biological and humanistic approaches to personality En este ensayo estaré discutiendo sobre la jerarquía o el uso de necesidades según las teorías de Maslow. Dentro de estas teorías estaré discutiendo la medida en que el crecimiento de las necesidades de formación influencia la personalidad. Describiré los factores biológicos que influencian la formación de la personalidad y examinare la relación biológica de los factores de la teoría de la personalidad de Maslow. En adición explicare los
Rating:Essay Length: 1,180 Words / 5 PagesSubmitted: August 19, 2011 -
Biology 101
DNA is not a major component of the plasma membrane. Ribosomes are created in the nucleolus which is inside of the nucleus. The rough endoplasmic reticulum is the area in a cell where proteins are synthesized. The chloroplast functions in photosynthesis. Cell membranes are made of two phospholipid layers called a bilayer. the nucleus is surrounded by a double layer membrane called the nuclear envelope. Not all substances can cross the cell membrane, for this
Rating:Essay Length: 332 Words / 2 PagesSubmitted: September 10, 2011 -
Biological and Humanistic Theories
* Describe biological factors that influence personality formation. * Identify the effect of growth needs on personality formation. * Explain basic aspects of humanistic personality theory. CONTENT OUTLINE 1. Biological theory- Biological theory is the theory that attempts to explain behaviors contrary to societal expectations through examination of individual characteristics. It is concerned with both similarities and differences among individuals (Crews, 2009). a. Key biological theorists 1) Hans Eysenck He was a British psychologist. He
Rating:Essay Length: 356 Words / 2 PagesSubmitted: September 18, 2011 -
Dr in Wave Biology of Russian Global Institute
Dr in wave biology of Russian Global Institute. Introduction Myrmecology has been around since the late 18th and early 19th century. Myrmecology is derived from the Greek word Murmek, which means ant. There are three main names that are most noteworthy: Linne who produced "Systemae Naturae" which he describes eighteen species of ants. Fabricius created five more genera and further described other species. Latreille was the most significant, he collected and studied the ants of
Rating:Essay Length: 664 Words / 3 PagesSubmitted: October 6, 2011 -
Stress: A Help or A Hindrance? Define Stress from A Biological Perspective and Discuss the Potential Positive and Negative Psychological Effects Resulting from It.
Stress: a help or a hindrance? Define stress from a biological perspective and discuss the potential positive and negative psychological effects resulting from it. Everyone experiences stress but defining it is difficult. Most people would suggest it refers to the physical consequences (such as heightened blood pressure, nausea, rapid heartbeat or not being able to sleep) which result from the failure to cope with physical or emotional demands (such as dealing with predators or sitting
Rating:Essay Length: 1,115 Words / 5 PagesSubmitted: October 8, 2011 -
Biology Case
For the first example, we are going to say that in Virginia we have observed that an increasing number of frogs are dying. We also observe that the forests are being destroyed. After making these observations, we ask ourselves what is causing our frogs and trees to die? We know that frogs are very sensitive to acid rain, so we are able to come up with a hypothesis. The levels of acid rain are causing
Rating:Essay Length: 398 Words / 2 PagesSubmitted: November 11, 2011 -
Biology Photosynthesis
get three green plants, name them plant A, plant B, and plant C. put the A plant in the open area and expose it to the to regular sunlight and water. put plant B in the closed area with regular water but enclosed in the dark room away from the sunlight but got an exposure from certain light bulb. put plant C in the closed are with proper water but no light at all. Observed
Rating:Essay Length: 545 Words / 3 PagesSubmitted: November 16, 2011 -
Ethical Consideration at Biological Level of Analysis
The main aim of genetic research in humans is to identify particular genes involved in hereditary diseases. For example, in recent years genetic tests are being done during pregnancy to see if a baby has certain disease and if possible follow diets during pregnancy to reduce the risk and severity(like PKU) However, there are many ethical implications that are being brought forth as research is discovering the role of genes in determining our behavior and
Rating:Essay Length: 420 Words / 2 PagesSubmitted: December 15, 2011 -
Biology Lab 2 - Methods Report Dna Isolation from Banana Cells
To begin the experiment, a 1cm3 piece of banana was cut and mixed with a pinch of sand in a mortar, and mashed up with a pestle. Using a pipette, 10mL of detergent/ salt solution was measured and added to the mortar. The mixture was then ground for four minutes. Next, a funnel was lined with cheesecloth, and the liquid was poured through it and into a clean test tube. With a clean pipette, 4mL
Rating:Essay Length: 338 Words / 2 PagesSubmitted: March 5, 2012 -
Biological Therapies Used to Treat Sz
About 1% of the population over the age of 18 suffer from SZ. There is no cure for it however there are therapies such as biological therapies which reduces the symptoms of SZ. Biological therapies include drugs, ECT and Psychosurgery. Antipsychotic drugs are a group of psychoactive drugs altering brain functions and resulting in changes to perception and behaviour which are commonly used to treat SZ and other abnormalities. There are two types of antipsychotic
Rating:Essay Length: 1,317 Words / 6 PagesSubmitted: March 7, 2012 -
Biological Chemical and Agro Terrorism
A study done to review the biological attacks over the 20th century demonstrated approximately 100 incidents - 29 of those involved the terrorist organization actually acquiring the biological agent and 19 of those involved actually using the agent. Our world is more adapt now then it was in the 20th century and according to an article in the McClatchy Newspapers, "United States remains the highest priority intelligence target for many foreign intelligence services." In certain
Rating:Essay Length: 911 Words / 4 PagesSubmitted: March 16, 2012 -
Biological Psychology Notes
Glial cells: (glial measn glue)- and also plentiful Astrocyte- communicates closely with neurons, increase the reliability of their transmission, control blood flow in the brain, and play a vital role in the development of the embryo. - intimately involved in thought, memory and the immune system -we can find astrocytes in a great supply in the blood-brain barrier, a fatty caoting that wraps around tiny blood vessels - blood brain barrier is the brains way
Rating:Essay Length: 422 Words / 2 PagesSubmitted: May 22, 2012 -
Biology 260: Diseases of the Skin and Eye
Since Meg had recently returned from summer camp in Vermont with the rash, it seems reasonable to assume that the rash was due to an infection picked up at camp. The infection didn't appear to be an infection from the normal skin or eye micro-organisms--Staphylococcus epidermidis, Staphylococcus aureus, Streptococcus pneumoniae, Streptococcus pyogenes, Enterobacteriaceae, Corynebacteria, or Mycobacteria (Todar, 2008)--all of those infections either affected a different part of the body such as the eyes or face
Rating:Essay Length: 530 Words / 3 PagesSubmitted: May 23, 2012 -
To What Extent Does the Biological Approach Provide an Explanation of Criminal Behaviour
When Considering whether the biological approach, which focuses on innate factors in an individual that may predispose them to behave in a certain way provides an adequate explanation to criminal behaviour It is first important to know the biological approach incorporates a number of different areas of research these include pathology, genes, hormones, gender and evolutionary explanations. A culmination of these areas leads to a strong explanation of criminal behaviour. For instance it has already
Rating:Essay Length: 681 Words / 3 PagesSubmitted: May 31, 2012 -
Biology 11 Notes
Biodiversity Major Characteristics of Kingdoms Bacteria - Organized based on: cell shape, cell wall and mobility - Cell Shape: Cocci - berries, bacilli- rod, spirochetes - hair - Movement - flagella (whip tail) or slimy mucous - Nutrition: heterotroph, photoautotroph, photoheterotroph, chemoheterotroph - Reproduce: Binary fission - replicate themselves Transformation - take dna from environment Conjugation - two bacterial cells join and share dna Transduction -viruses infect + inject dna Endospore - dormant stage Fungi
Rating:Essay Length: 1,465 Words / 6 PagesSubmitted: June 19, 2012 -
Biology Case
Nutrient A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment.[1] They are used to build and repair tissues, regulate body processes and are converted to and used as energy. Methods for nutrient intake vary, with animals and protists consuming foods that are digested by an internal digestive system, but most plants ingest nutrients directly from
Rating:Essay Length: 465 Words / 2 PagesSubmitted: June 26, 2012 -
Action Plan in Biology
REFLECTION/REACTION Our action plan in Biology is to plant trees, to lessen the amount of carbon dioxide in our school campus, instead of collecting some bottles that when sold it could still have an effect to the environment. We had the project to plant seedlings on pots and place them in our school as proof that we did our project and at the same time to help the school look clean and green. Our group
Rating:Essay Length: 266 Words / 2 PagesSubmitted: September 8, 2012 -
Biological, Anthropological & Psychological Perspectives on Rape
According to websterdictionary.org, rape is defined as "forcing (someone) to have sex against their will." However, from the sociological point of view, it means something completely different. Throughout sociology, different thoughts on rape have been discovered based on three different perspectives: biological, anthropological, and psychological. According to The Gendered Society by Michael Kimmel, from the biological perspective, rape is done because men are suppose to produce babies, and when they are unattractive, the only way
Rating:Essay Length: 1,216 Words / 5 PagesSubmitted: January 19, 2013 -
Biology Case
Dear Diary, 11/20/12 This week has not been an ideal one. Starting my first week of a new high school, I was expecting a new adventure. My family and I had moved only two weeks ago from Dearborn Michigan, the second highest population of Muslims outside an actual Muslim country, to San Francisco. I being a young Lebanese Muslim felt very appeased and comfortable at Dearborn. We followed the same rules and guidelines, we all
Rating:Essay Length: 662 Words / 3 PagesSubmitted: February 8, 2013 -
Biology Case
Evolutionary developmental biology (evo-devo) was instituted in the early 1980s as a distinctive field of study to characterise the new synthesis of evolution hypothesis (Müller, 2007). Evo-devo is regarded as a new rule in evolutionary biology and a complement to neo-Darwinian theories. It has formed from the combination of molecular developmental biology and evolutionary molecular genetics; their integration has helped greatly to understand both of these fields. Evo-devo as a discipline has been exploring the
Rating:Essay Length: 2,218 Words / 9 PagesSubmitted: February 13, 2013 -
Evolutionary Developmental Biology
There are many studies that recognise how genetic mechanisms can affect the phenotype in animals, including butterflies (Beldade and Brakefield, 2002), honeybees (Toth and Robinson, 2007) and fish (Protas et al., 2006). For example, the unsighted cavefish (Astyanax mexicanus) represents a good form of the morphological features in evo-devo. Because of the adjustment to living in darkness, they have no place eyes; however, they have also gained a number of helpful characteristics. Later studies suggested
Rating:Essay Length: 390 Words / 2 PagesSubmitted: February 13, 2013 -
Biological Influence
Unit One IP Aspects of Psychology 2/24/2013 Abstract In this essay you will learn about three different experiments that I have done. also my reations through every experiment. Experiment one is sugar water, when I did the sugar water test it sounded very weird to me. But after I tried the experiment it surprised me, because I never thought it would be cool to try something new. Before I tried the experiment I thought it
Rating:Essay Length: 817 Words / 4 PagesSubmitted: February 24, 2013