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Free research essays on topics related to: cavity

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  • Vallon Pont D'arc Pont D'arc Cave
    415 words
    At the foot of a cliff in the Apache Gorges, in south-eastern France, amateur speleologists discovered the world's oldest painted prehistoric cave. Discovered on December 18, 1994, this cave features art that dates back thirty-one thousand years. Jean-Marie Chauvet, Eliette Brunel-Deschamps and Christian Hilaire, were the amateurs who discovered the cave that has come to be known simply as the Chauvet cave. The explorers were in Vallon-Pont-d'Arc, France some thirty feet below ground. While expl...
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  • Solid State Lasers Back And Forth
    2,014 words
    Laser is an acronym for light amplification by stimulated emission of radiation. In the last century many types of lasers have been used for many different applications from welding to surgery to military and even many uses in every day life by harnessing the principles of light and stimulated emission. To understand how lasers work we must first understand the physics behind light waves. Light is emitted from a source and travels in straight lines and when it strikes an object is either absorbe...
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  • Canopy Jars Body Cavity
    575 words
    Mummification in ancient Egypt was a very long and expensive process. From start to finish, it took about seventy days to embalm a body. Since the Egyptians believed that mummification was essential for passage to the afterlife, people were mummified and buried as well as they could possibly afford. High-ranking officials, priests and other nobles who had served the pharaoh and his queen had fairly elaborate burials. The pharaohs, who were believed to become gods when they died, had the most mag...
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  • Ancient Egyptian Beliefs In The Afterlife
    1,554 words
    The Egyptian culture is something that has fascinated the human race for thousands of years. Their cryptic writing and obsession with the afterlife have captivated people across the globe for centuries. The lives of the Egyptians were so centrally focused on their life after death, that it became a motif seen in many of their works and proceedings. The funerary rituals, architecture and art of this ancient civilization provide the modern day world with a looking glass into the history and basis ...
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  • Three Organisms Hydra Flatworm And Earthworm
    436 words
    The Hydra, unlike other animals with an anus and rectum, uses the same opening for both taking in food and eliminating wastes. Its intracellular and extracellular digestive processes are detailed in the drawing I have made. It is the simplest of animals in the drawings, since it uses a contractile fibrils lining in its skin. The cells lining in the Hydra can take in solid bits of food with the internal cavities. Special cells of the hydra secrete enzymes into the central or digestive cavity, whe...
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  • Los Angeles Bad Luck
    1,807 words
    When the mention of the name Rudolph Valentino happens, it is mostly likely that the response received would be, The Great Lover and The Sheik. Valentino's jaw-dropping appearance and great looks aside, he was also a very fine comedian, something that very few people realize. It was through Valentino that the now very common concept of hot actors such as Tom Cruise came about. (Stiff 2 / 23 / 02) Valentino was a fine actor, a film pioneer, and a film icon. (Hill 2 / 3 / 02) Born May 6, 1895 in C...
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  • Dissecting The Mummies Of Ancient Egypt
    1,302 words
    Ancient Egyptians do not routinely check into hospitals complaining of chest pains or sore muscles. There are no current medical reports that outline the symptoms or diagnosis of an ancient Egyptian's stomachache and no ancient Egyptian has shown up to any contemporary clinics for blood tests. The only way, therefore, for modern scientists and anthropologists to examine the cause, result, and other factors of ancient Egyptians' diseases is to study the preserved mummies. Through CAT scans, DNA t...
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  • Solid State Lasers Beam Of Light
    1,749 words
    L A S E R S Did you know that some laser beams are small enough and powerful enough to drill two hundred holes on a spot as tiny as the head of a pin? The first major advancement in laser development came in 1954. This was the year that Charles H. Townes, an American physicist, created a device that amplified microwaves. This device was actually called a maser at first, which was short for Microwave Amplification by Stimulated Emission of Radiation Masers. It produced microwaves of just one freq...
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  • Canopy Jars Ancient Egyptians
    1,292 words
    When you think of a mummy what comes to mind? Most of us usually picture an Egyptian mummy wrapped in bandages and buried deep inside a pyramid. While the Egyptian ones are the most famous, mummies have been found in many places throughout the world, from Greenland to China to the Andes Mountains of South America. A mummy is the body of a person (or an animal) that has been preserved after death. Normally when we die, bacteria and other germs eat away at the soft tissues (such as skin and muscle...
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  • Social Behaviour T J
    2,957 words
    Play in Dogs Play means much in a dogs life and its development. Plays share in everyday dogs activities is very considerable. Some dogs love to play at a mature age, some even when they are senior. Humans should not overlook dogs calls to play, even when dogs have an opportunity to play with their mates. When playing with people, a dog learns to understand our words, gestures and mimics much better. A young dog or a puppy gets very connected to a person playing with it and people are able to wa...
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  • Be More Educated On Oral Hygiene
    1,791 words
    Be More Educated On Oral Hygiene Maintaining good oral hygiene is one of the most important things everyone can do for his or her teeth and gums. Healthy teeth not only enable you to look and feel good, they make it possible to eat and speak properly. Good oral hygiene results in a mouth that looks and smells healthy. By the way, this can become a crucial factor in ones everyday communication. Moreover, good oral health is extremely important to peoples overall well-being because its poor state ...
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  • Civil War Long Range
    657 words
    The artillery crews of both armies of the Civil War worked with the first guns that would eventually come to be the long-range killing machines that are used by the modern armies of today. The Civil War saw the beginnings of rifled barrels and breech loading artillery, with limited service however these new concepts were not fully developed and perfected until the years after the war. On the battlefields of the Civil War the smoothbore guns reigned supreme. There were three types of field ordina...
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  • Hepatitis B E G
    1,075 words
    Cross Infection Control In Dentistry. Cross infection involves the spreading of disease from one source to another and hence increasing the number of people suffering that specific disease. In dentistry, infection control is of particular importance as bacterial infections of the oral cavity, like infection anywhere else in the body, can be potentially life-threatening. The mouth carries a large number of potentially infectious micro-organisms; saliva and blood are known vectors in infection. It...
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  • Vertical Lines Business Transactions
    805 words
    The object in question is marked as a Syrian, Bronze Age, stone label seal (c. 3 rd- 2 nd millennium). Most of the seals I have viewed have much more representational forms on them than this object has. I have not been able to find any books which have pictures of items with this name, which leads me to believe that it has been marked wrong. The object resembles a small, oval shaped bead with indentations in the centers of the longer sides, making it look like the number 8. Both sides have the s...
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  • Coronary Artery Disease 20 Th Century
    952 words
    There are many things today which cause us harm. One can spend virtually an entire day listing the hazards faced by modern society. However, none of these hazards are as deadly as a habit millions of Americans bring on themselves twenty to thirty times a day. Smoking is the cause of a multitude of medical problems that plague not only the individual smoker, but everyone else as well. Smoking is defined as the inhaling and exhaling of the fumes of burning plant material, especially tobacco, from ...
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  • Parts Of The Body Microscopic Organisms
    1,436 words
    A body has been discovered from a lake. How would you? Identify the body. It is important to try and establish the identity of the victim as quickly as possible. Physical identification is the most common method used to identify a body but this is not always possible as the body may be too decomposed or disfigured. If the body has not been in the water for long articles of clothing, jewellery, scars or tattoos may help to identify the victim. Bodies submerged in water tend to decompose more slow...
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  • Whale Simply Swims Abundant The Whale Humpback
    814 words
    Introduction As Humpback Whale Humpback Whale Introduction As the boat sways up and down, hours take years to complete, and the anticipation grows to see that one element of the whole trip. That element being the site of the enormous tail fin of a humpback whale. These trips are often taken via television for most people, but there are a select few who see the real thing. The humpback whale is usually unseen and forgotten. But this beautiful creature has been around a long time and if forgotten ...
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  • Daughter Cells Body Cavity
    316 words
    A Phylogenetic Tree Phylogenetic Tree A color is a body cavity lined with mesoderm surrounding the digestive organ or system. The term acoelomate means that the organism doesn t have a body cavity and the mesoderm is packed inbetween the ectoderm and the endoderm. Pseudocoelomates have a body cavity that is incompletely lined with mesoderm so their organs lie loose. In protostomes, the mouth develops near the blastopore first, and then the anus forms. In deuterostomes however, the anus develops ...
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  • Chronic Sinus Infections Nose Is A Organ Sense
    634 words
    The The Nose The Nose The nose is a organ used for breathing and smelling that is found in the center of the face above the mouth. In this report you will learn about how it works, and things that can affect it. At the end of the nose there is a pair of nostrils, these allow you to breathe in air and exhale it. At the end of the nostrils comes the nasal cavity. Going farther up, the cavities divide into 3 shelf-like bones called nasal concha or turbinates these warm inhaled air. From there the s...
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  • Area Of The Brain Permanent Damage
    785 words
    Though the ultimate Strokes Strokes Though the ultimate result of a stroke or intracranial accident is neurological damage, the primary cause of this condition seems from a catastrophe of vascular origin affecting intracranial blood flow. From a technical perspective, a stroke is defined by the World Health Organisation as rapidly developing clinical sign of cerebral function, lasting more then 24 hours or leading to death, with no apparent cause other then of vascular origin. Without a supply o...
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