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Free research papers and essays on topics related to: respiratory system

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  • Acid Rain - 1,829 words
    ... . These particles collect on the leaves of the tree, and studies have shown that when these particles contain acid they can cause damage to the leaves. The leaves are the part of the tree that help make food, hence any damage to the leaves will result in harm to the health of the entire tree. Coniferous trees are vulnerable to the harmful effects of acid rain as well. The tree's needles are designed to nourish the tree after they fall to the ground. Each needle houses whole colonies of microscopic bacteria and algae that help the tree change nitrogen into food at the roots. Acid rain will often burn away this material, thereby reducing adequate food supply, and weakening the tree's healt ...
    Related: acid, acid rain, rain, eastern canada, human health
  • Air Pollution - 1,431 words
    Air Pollution Air pollution Introduction With the great concern surrounding the destruction of the earths atmosphere due to air pollution, the immediate and direct harm caused to the human body is often over shadowed. While many are aware that our careless use of hazardous chemicals and fossil fuels may leave the planet uninhabitable in the future, most over look the fact that they are also cause real damage to our bodies at this moment. Such pollutants cause damage to our respiratory system, leading to the fluctuation of the life span of an individual depending on a number of conditions. Amongst these conditions are the individuals specific geographic location, age, and life style. This pap ...
    Related: air pollution, pollution, life span, educational foundation, excessive
  • Air Pollution Report - 1,203 words
    ... es not affect all parts of the world. It is most common in a city such as Los Angeles where these weather conditions exist. Ozone depletion is looked upon as a problem that up till now, we can not fix. Air pollution has caused this hole in the ozone layer. The ozone layer absorbs 99% of the sun's harmful energy. It prevents ultraviolet radiation from reaching the Earth's surface and the troposphere. It protects humans from sunburn, skin and eye cancer, and cataracts. It also prevents much of the oxygen in the troposphere from being converted to ozone (gas). In the mid-seventies chemists F. Sherwood Rowland and Mario J. Malian discovered CFC's were creating a global chemical time bomb by ...
    Related: air pollution, pollution, pollution control, pollution prevention, management program
  • Animal Behavior - 2,263 words
    Animal Behavior Biology lb Abstract Animal behavior is predictable. Their behavioral tendencies are influenced by the relationship of its anatomy to their environment. By observing various forms of life, and associating the mechanism of their abilities to perform a behavioral action, evolutionary influence thereafter, can be analyzed and deduced from that point. Introduction The science and study of animal behavior involve an enormous array of complicated factors. For instance, stereotyped responses are unlearned behavioral reactions to some environmental stimulus predicated upon an organism relationship to its physical environment and anatomy. This obviously begs the question; is the observ ...
    Related: animal behavior, more important, field trip, guinea pig, incredible
  • Argument Against The Legalization Of Marijuna - 1,687 words
    Argument Against The Legalization Of Marijuna Argument against the legalization of marijuna The legalization of marijuana is one of the most highly debated about subjects facing Canadians and Americans today. Advocates of legalization use two major arguments in their effort to have marijuana legalized. First, which is by far the biggest argument is that marijuana has a significant medical use. The second argument is that marijuana does not cause harm to those that smoke it. Both of these arguments can be easily discounted by the numerous studies that have been done on the effects of marijuana both medicinal and recreational. In the following paragraphs we will explore the hard facts of marij ...
    Related: drug legalization, legalization, legalize marijuana, criminal behavior, intoxicated
  • Aromatherapy - 1,341 words
    ... he healing process. Alternative medicine is offered now in quite a number of medical schools. I think a lot of hard-core scientists and doctors who have been trained in that data-oriented scientific approach are realizing there's more to heaven and earth than we really know about. Still, Peterson admits that empirical evidence is necessary for widespread acceptance: This is such a new area that there are a lot of studies at this point that aren't reproducible. Even though there's been some interesting work done in Japan and Germany, it's one thing to get results once. But it doesn't appear that researchers have been able to duplicate these results again. While I believe there's a scienti ...
    Related: aromatherapy, alternative medicine, spiritual growth, scientific basis, toronto
  • Automobile Emissions - 1,899 words
    Automobile Emissions Pollution from automobile emissions has become over the past few decades an issue of great concern. With a growing number of motor vehicles on our roads great concern has been attributed to the effects of these emissions to our health and to the environment. Several of the gases emitted, which when present in certain concentrations in our atmosphere can be toxic, therefor these ultimate concentrations must never be achieved. Strict legislation as well as sophisticated control technology has been implemented in the automotive industry in order to limit the pollution caused. These aspects of automotive pollution shall be further discussed in this paper. KEYWORDS: Pollution ...
    Related: automobile, emission control, term effects, health effects, hemoglobin
  • Biology And Human Evolution - 1,381 words
    Biology And Human Evolution Human Biology and Evolution Humans are Alive The earliest human life form can be traced back more than 3.5 billion years ago. Humans are said to be descendants of a single celled ancestor. Although they are different in size and shape all basic functions are alike. The more complex the organization of the cell became the more successful and developed it became. As these single celled organisms developed they became known as pre-humans. We share many characteristics with these pre-humans. Some of these characteristics include the masters of heredity DNA and RNA as well as proteins composed of amino acids, membranes or bound cells and lastly controlled cell division ...
    Related: biology, evolution, human biology, human brain, human evolution, human life
  • Bovine Tmb - 1,501 words
    Bovine TMB Bovine Tuberculosis Mycobacterium bovis (Bovine Tuberculosis) (or cattle Tuberculosis) was first discovered by Columella (Louis Junius Moderatus Columella) which was born in Cadiz, Spain and resided in Northern Italy when he discovered the bovine Tuberculosis in the year 14 A D. In 1882 Robert Koch discovered that the connection between human and animal Tuberculosis actually were established. When Koch realized that children were becoming infected from contaminated cows milk most nations brought out legal instruments designed to remove chronically infected animals and take a look at the public health aspect of the problem. The Disease Mycobacterium bovis is the bacterium that caus ...
    Related: bovine, control programs, new zealand, most effective, confirmation
  • Butterflies - 946 words
    Butterflies BUTTERFLIES: Butterflies are flying insects, which comprise the order Lepidoptera with. There are about 15,000 to 20,000 kinds of butterflies. Butterflies are holometobore insects. The largest butterfly ever found is the Queen Alexandras butterfly. Scientific and non-scientific vocabulary words which must be learned before reading this section in alphabetical order: Abdomen: (noun) 1. The part of the body in mammals, that lies between the thorax and the pelvis. 2. In arthropods the major part of the body behind the thorax. Appendage: (noun) (1. Something attached to a larger entity.) 2. A subordinate or derivative bodily part Conceal: (verb) to keep from observation, discovery, o ...
    Related: human body, circulatory system, respiratory system, liquid, respiratory
  • Chemistry Research - 2,121 words
    Chemistry Research CHAPTER 32 The tallest tree is the Redwood (Sequoia sempervirens) approx 110 m The tallest Angiosperm is the Australian Eucalyptus regnans Water Uptake and transport (Fig. 32.1) = water is essential because: transport solute, cool the body, photosynthesis and Turgor pressure Osmosis- movement of H2) through a semi-impermeable membrane Osmotic potential ( o)-depend on dissolve solute: Hi concentration means more negative o. Isoosmotic-two solution with same o; Hypoosmotic- solution that has a less negative o(more +) Turgor Pressure -hydraulic pressure result from water up take, cell turgid; analog to air pressure in a tire Water Potential ( )-Overall tendency of a solution ...
    Related: chemistry, respiratory system, nervous system, endocrine system, poison
  • Dream Interpretation Therapy - 1,243 words
    ... atient. The therapist invites the patient to talk about his or her past, angers, fears, and fantasies. This form of talking helps the patient gain control of his life by confessing to the therapist his or her needs, motivations in life, wishes and memories. Sometimes there are difficulties in the progress of a person's ability to talk about what is bothering him or her. This difficulty of making progress is called resistance. An example of resistance is when the patient becomes unable to talk to the therapist any longer, or stops communicating feelings, or does not want to talk about certain topics. Transference is another problem that sometimes occurs through the course of the therapy. ...
    Related: dream, dream interpretation, interpretation, therapy, simon schuster
  • Each Year There Are About 250 People Added To Death Row And 35 Executed From 1976 To 1995 There Were A Total Of 314 People Pu - 1,641 words
    Each year there are about 250 people added to death row and 35 executed. From 1976 to 1995 there were a total of 314 people put to death in the US 179 of them were put to death using lethal injection, 123 were put to death using electrocution, 9 were put to death in a gas chamber, 2 were hanged, and 1 was put to death using the firing squad. The death penalty is the harshest form of punishment enforced in the United Sates today. Once a jury has convicted a criminal, they go to the second part of the trial, the punishment phase. If the jury recommends the death penalty and the judge agrees then the criminal will face some form of execution, lethal injection is the most common form used today. ...
    Related: death penalty, death row, peanut butter, supreme court, prisoners
  • Earthworms - 429 words
    Earthworms Earthworms are classified as Annelida. Annelida mean little rings which refers to the many segments in their body. The structure of an earthworms body is made up of more than one hundred segments separated by partitions that divide the coelum. All segments are identical except by the anterior and posterior ends. The anterior segments reflect the cephalization that is an adaption of burrowing. The head of the earthworm contains the sense organs. The muscle lines that make up the interior body wall are circular and longitudinal. Earthworms move by anchoring some segments by their setae and contracts the circular muscles in front of those segments, producing fluid pressure in the ant ...
    Related: carbon dioxide, circulatory system, respiratory system, link, storage
  • Fish Gills - 562 words
    Fish Gills Not all animals have lungs. Many animals live in environments where lungs would be efficient enough for survival. Gills are another type of respiratory system, which are very efficient at removing oxygen from water: there is only 1/20 the amount of oxygen present in water as in the same volume of air. Gills greatly increase the surface area for gas exchange and they occur in a variety of animal groups including arthropods (including some terrestrial crustaceans), annelids, fish, and amphibians. Gills are typically comprised of a gill arch, which contain veins and arteries that supply blood flow to the attached gill filaments. The arches are a rigid stucture which provide support a ...
    Related: fish, oxygen content, respiratory system, total number, david
  • Group 1 - 1,748 words
    Group1 1 OUR FOOD SYSTEM After a long hard day of work you sit down in your comfortable recliner and open up your favorite snack. But when you reach into grab a piece, you pull out a dead bug. Suddenly many thoughts come into your mind, you wonder how did the bug get there and was it dead or alive. Is it harmful or carry a disease. You ask yourself did the bug come from the United States or another country and where was your snack made? As all these questions come into your head, you wonder who can give you the answers. Fortunately, the government thought about these conflicts and established several governmental agencies to protect Americans in food safety. These agencies are responsible fo ...
    Related: environmental protection, president abraham lincoln, department of agriculture, parasites, consumers
  • In Recent Years, Euthanasia Has Become A Very Heated Debate It Is A Greek Word That Means Easy Death But The Controversy Surr - 1,838 words
    ... ring on others.17 Typically, a Dutch euthanasia patient is first given a shot of barbiturates, which causes unconsciousness within three to five seconds. A follow-up shot of curare produces death in 10 to 20 minutes by paralyzing the respiratory system. A Dutch doctor who performs euthanasia is not permitted to attribute death to natural causes on the death certificate. Rather, he or the coroner must inform the police that a medically aided death has occurred. The police, in turn, report to the district attorney, who decides whether to prosecute.18 Recently, Dr. Jack Kevorkian killed a man suffering from Lou Gehrig's disease and gave the videotape to 60 Minutes. Thomas Youk, 52, was kill ...
    Related: active euthanasia, controversy, debate, euthanasia, greek
  • Insomnia - 1,234 words
    ... rks and wakes them as they are first falling asleep. Almost any sleeping pill, if taken continuously, will cause insomnia. Sleep can be affected by ones individual differences, prior sleep history, circadian rhythms, drugs, life styles, and psychopathology. Caffeine and nicotine are both central nervous system stimulants, and as such are sleep-disrupting substances. Insomnia can also be due to poor eating habits, caffeine, and lack of exercise. Medications that are prescribed bed for sleep can disrupt or eliminate the sleep are: Doral, Halcion. Restoril , valium, and Xanax. Antihistamines can also cause sleep depravation. Vitamins and minerals such as B6, niacin amide, calcium, magnesium ...
    Related: insomnia, mental health, sleep patterns, economic status, flower
  • Kyphosis: Prevention And Correction - 1,216 words
    Kyphosis: Prevention And Correction Kyphosis: Prevention and Correction The natural physiological curves of the spinal column are formed in the first months and years of child's development. With the raising of child's head the first curve is made. That is a cervical curve - curve of a neck, and it is convex forward. With the first attempts to stand or with sitting the thoracic curve, the curve of the upper back, is made and it is convex backwards. When the child is old enough to stand, the lumbar curve, pointed forward, is made. In the first years of child's life, if there are not any pre birth deficiencies, the spinal cord has its regular (normal) physiological position (Dunn 541). The fut ...
    Related: correction, prevention, resonance imaging, individual behavior, measuring
  • Lassa Virus - 650 words
    Lassa Virus The Lassa virus is a vulgar virus with a high mortality rate and an expensive cure. Lassa was strange to me because I have never heard of the virus before. As I was reading in my research, I began to realize the risk the virus has on people. Lassa was first discovered, in humans, in a village in northern Nigeria (Andrechek). Lassa outbreaks have been reported in Guinea, Senegal, Mali, Sierra Leone and Zaire, which are all countries in West Africa (Andrechek). There have been reports of the Lassa virus out side of West Africa but those were in health care workers who had previously worked in that area. There is an estimate of 200,000 to 400,000 cases of Lassa Fever annually, thous ...
    Related: virus, respiratory system, blood pressure, chest pain, pregnant
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