Science
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4,609 Essays on Science. Documents 4,501 - 4,530
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What Do the Straws Strings and Rubber Bands Represent on the Real Hand
Cer 1: What do the straws strings and rubber bands represent on the real hand. The straws and rubber bands represent the tendons and ligaments. The straw-hand design shown in this project mimics the way that tendons bend your fingers even though the muscles that control the action are actually in your forearm. To make your finger bend, a muscle pulls on a long string of collagen called a tendon. The tendon connects the muscle
Rating:Essay Length: 313 Words / 2 PagesSubmitted: December 14, 2015 -
What Effect Does Alcohol Have on a Person's Health and Life Expectancy?
Nicola Cooper Student No; cs329513 What effect does alcohol have on a person’s health and life expectancy? The consumption of alcoholic beverages dates back to approximately 10,000 years ago when ‘viticulture’ (the selective cultivation of grape vines for making wine) is said to have originated in the mountains between the Black and Caspian Seas. (1) It is one of the most commonly used psychoactive drugs in the world. Alcohol interacts with gamma amino bultyric acid
Rating:Essay Length: 303 Words / 2 PagesSubmitted: March 25, 2010 -
What Effects Does Crowing Havw on Bean Plants
What effect does crowding have on bean plants? My prediction was that crowding would have no effect on them. I predicted it this way because plants are made to grow in tough conditions and I dident think crowding would have any effect. Materials needed to experiment. 2 Planting pots Planting soil 4 Bean seeds Water Ruler Support stick Notebook Procedure: Take your planting pot fill with planting soil a little above half way. Take your
Rating:Essay Length: 505 Words / 3 PagesSubmitted: December 3, 2009 -
What Encryptions Algorithms Are the Most Commonly Used by the Public to Prevent Pc Hacking?
Vicki Wilhelm 4 December 2, 2015 Tim Wedge DFS 1109 What encryptions algorithms are the most commonly used by the public to prevent PC hacking? While security is an afterthought for many PC users, it’s a major priority for businesses of any size. Encryption is an interesting piece of technology that works by scrambling data so it is unreadable by unintended parties. Once encrypted, the message literally becomes a jumbled mess of random characters. Whether
Rating:Essay Length: 868 Words / 4 PagesSubmitted: March 31, 2016 -
What Ever Happened to the Dinosaurs?
Hamilton Sydney Hamilton Professor James CSCI 202-50 9 February 2017 What Ever Happened to the Dinosaurs? Dinosaurs roamed the Earth for 160 million years. Dinosaurs are ginormous and their skeletons can be seen from museums all over the world. Some dinosaurs flew, some ate meat, and some dinosaurs only ate plants. These prehistoric wonders died off about 65.5 million years ago, but nobody is certain how. There is a two-part theory surrounding how dinosaurs went
Rating:Essay Length: 400 Words / 2 PagesSubmitted: April 14, 2017 -
What Factors Affect the Resistance of a Wire?
What Factors Affect the Resistance of a Wire? Planning Background Electricity flows around a circuit in a current. A current is the flow of electrons. Currents are measured in amps. Voltage is the force which pushes electricity through a wire. Voltage comes from a cell or a socket. Voltage is measured in volts. Electrical resistance is a measure of the degree to which a body opposes the passage of an electric current. (en.wikipedia.org/wiki/Resistance(electricity). Resistance is
Rating:Essay Length: 1,358 Words / 6 PagesSubmitted: November 19, 2009 -
What Fitness Means
What does fitness mean to me? Well to start off, when I think of fitness, I think of exercise. Getting out there, and doing something that wears you out, but also makes you feel good about yourself. Then I go on to thinking about eating right, or you could say I think about nutrition. But when it comes to fitness and your health, I think a big part of being successful in achieving any goals
Rating:Essay Length: 815 Words / 4 PagesSubmitted: December 5, 2009 -
What Is a Mental Map
Taking the word mental and map into context the first thing that comes to mind is that mental means something abstract. When you place map into a location and geographical perspective you come to understand that maybe a mental map is a map that you have a photographic image of in terms of landmarks and visual objects. For instance, I would think that if one were to think of Africa, they may remember just the
Rating:Essay Length: 537 Words / 3 PagesSubmitted: April 11, 2010 -
What Is a Tarsier?
Phylum: Chordata Class: Mammalia Order: Primates Family: Tarsiidae Common Name: Philippine Tarsier What is a tarsier? Tarsiers are the smallest species of monkeys, and wholly carnivores. They have enormous eyes, a long tail, pads at the ends of each of their fingers and toes and, have big round ears that help them hunt better. These pads let them climb very well. Their large eyes are excellent at seeing at night. These animals are nocturnal,
Rating:Essay Length: 936 Words / 4 PagesSubmitted: January 5, 2010 -
What Is a Thyroid Gland?
Introduction What is a thyroid gland? How much do people understand about it? The organ is located at the base of the neck, surrounding the trachea. This seemingly insignificant body part plays a vital role in maintaining optimal development and ensuring the balance of an organism's central nervous system. In cases where it malfunctions, endocrine diseases may arise. This is reflected in Erica* who is a sufferer of grave's disease. This essay will first examine
Rating:Essay Length: 3,093 Words / 13 PagesSubmitted: April 23, 2010 -
What Is Abortion?
What is abortion? Abortion is the ending of a pregnancy before birth. Early in a pregnancy, the fertilized egg that grows and develops is called the embryo. After three months of development, it is usually called a fetus. An abortion causes the embryo or fetus to die. Abortion is a very inhumane thing to do I could never think of giving up a baby even when it is not an actual humane, when it is
Rating:Essay Length: 802 Words / 4 PagesSubmitted: December 6, 2009 -
What Is an Iceberg? Why Are They Blue or Green?
What is an iceberg? Why are they blue or green? An iceberg is a large floating block of freshwater ice that has broken off the edge of a glacier and been carried out to sea; about 90% of its mass lies under the water. The bluish streaks of clear, bubble free ice often seen in icebergs results from the refreezing of melt water which fills crevasses formed in the glacier as it creeps over
Rating:Essay Length: 885 Words / 4 PagesSubmitted: January 17, 2010 -
What Is an Infectuos Disease
What is an Infectious Disease? An Infectious Disease is a disease caused by germs, such as bacteria, viruses, fungi or parasites. These diseases are all "caught", hence they are often termed communicable diseases. Examples of specific infections include Strep throat, mononucleosis, cold sores, athlete's foot, appendicitis, boils, vaginal yeast infections, African Sleeping sickness and tuberculosis. HEPATITIS B VACCINATION Safe and effective vaccines are now available for protection against hepatitis B, a serious liver infection that
Rating:Essay Length: 558 Words / 3 PagesSubmitted: January 13, 2010 -
What Is Anthropology?
Anthropology is defined as the study of humankind and their behavior. Anthropologists conduct scientific and humanistic studies of the culture and evolution of humans. Anthropology is traditionally broken down into four sub-fields: Biological anthropology, Archaeology, Linguistic anthropology, and Cultural anthropology. There is also a fifth sub-field, Applied anthropology. Each of these branches has its own skills, theories, and knowledge of studying humanity. Biological anthropology studies the human body. They look at humans as a species,
Rating:Essay Length: 431 Words / 2 PagesSubmitted: January 5, 2010 -
What Is Arthritis?
ARTHRITIS What is arthritis? Arthritis means inflammation of the joints. It causes pain and usually also limits movement of the joints that are affected. There are many kinds of arthritis, but by far the most common type is called osteoarthritis (also called degenerative joint disease). What causes osteoarthritis? Unfortunately the exact cause isn't known. It has been recognized however that osteoarthritis seems to run in families, so if your parents had arthritis there’s a greater
Rating:Essay Length: 391 Words / 2 PagesSubmitted: February 28, 2010 -
What Is Ballistic Gelatin and How Is Does It Aid in Criminalistics?
What is Ballistic Gelatin and how is does it aid in Criminalistics? Ballistic gelatin is a solution of gelatin powder in water. Ballistic gelatin closely simulates the density and viscosity of human and animal muscle tissue, and is used as a standardized medium for testing the terminal performance of firearms ammunition. While ballistic gelatin does not model the structure of the body, including skin and bones, it works fairly well as an approximation of
Rating:Essay Length: 342 Words / 2 PagesSubmitted: January 19, 2010 -
What Is Biodiversity?
Biodiversity is the measure of variety of the Earth's animal, plant and microbial species; of genetic differences within species and of the ecosystems that support those species. The term first came to public attention in 1992 at the Rio Earth Summit at which a convention for the preservation for the maintenance of biodiversity was signed by over 100 world leaders [excluding the USA as they feared it would undermine the patents and licences of US
Rating:Essay Length: 1,147 Words / 5 PagesSubmitted: February 27, 2010 -
What Is Breast Cancer?
Introduction: What is breast cancer? Breast cancer will strike one in every eight American women. This makes it the most common cancer in woman. Approximately 200,000 women are diagnosed with breast cancer each year. Of that number, 40,000 will die from breast cancer each year. (Journal of Environmental Health 2003) Breast cancer is just one type of cancer. Cancerous cells are cells that grow without the normal system of controls placed upon them. Breast
Rating:Essay Length: 4,375 Words / 18 PagesSubmitted: April 8, 2010 -
What Is Cancer
What is Cancer The article entitled “What Is Cancer?” from the American Cancer Society’s web site discussed how cancer forms and effects people in different ways depending on what type of cancer they have. It also mentioned how cancers are treated and ways to prevent cancer. Cancer forms from the uncontrolled growth of abnormal cells in the body. When we are born we all have normal cells that continually grow until adulthood. We also have
Rating:Essay Length: 364 Words / 2 PagesSubmitted: January 13, 2010 -
What Is Cell Respiration
What is Cell Respiration? And what is Photosynthesis? And what, is there effect on our lives? In this paper I’ll be discussing these topics and try to clear up any confusion on the subject. Did you know that with out even knowing it you are carrying on cell respiration millions of times a second? And that you can’t live without it? But it is not only humans who do this. All living things, whether one
Rating:Essay Length: 1,508 Words / 7 PagesSubmitted: December 16, 2009 -
What Is Chlamydia?
CHLAMYDIA What is Chlamydia? Chlamydia is a sexually transmitted infection caused by bacteria. It is estimated that chlamydia is the most common STD with 3 - 4 million new cases each year. Rates of chlamydia are highest in the West and Midwest, part of the contry. How is it Spread? Chlamydia is spread by direct person-to-person contact. It is almost always transmitted through sexual contact. It is also possible for pregnant women to pass the
Rating:Essay Length: 614 Words / 3 PagesSubmitted: April 7, 2010 -
What Is Cloning?
What is cloning? Cloning is the process in which we replicate something. Scientists had used cloning experiments and try to clone many mammals before. However, cloning also have to be ethical, some people considered cloning human is unethical. There are three different techniques that scientists use to clone. These techniques are: recombinant DNA technology or DNA cloning, reproductive cloning, and therapeutic cloning. The first method of cloning is to use the recombinant DNA technology.
Rating:Essay Length: 469 Words / 2 PagesSubmitted: January 15, 2010 -
What Is Cloning? Are There Different Types of Cloning?
Introduction The possibility of human cloning, raised when Scottish scientists at Roslin Institute created the much-celebrated sheep "Dolly" (Nature 385, 810-13, 1997), aroused worldwide interest and concern because of its scientific and ethical implications. The feat, cited by Science magazine as the breakthrough of 1997, also generated uncertainty over the meaning of "cloning" --an umbrella term traditionally used by scientists to describe different processes for duplicating biological material. What is cloning? Are there different types
Rating:Essay Length: 2,610 Words / 11 PagesSubmitted: December 13, 2009 -
What Is Cystic Fibrosis?
Your child is under weight, has greasy, smelly diarrhea, a chronic cough and seems to always be getting pneumonia. He wheezes when he breathes and has impaired exercise ability. He seems to never being growing to the average size of his peers and his skin is very salty (5). The doctor’s first instinct should be to test your child for a disease called cystic fibrosis. Cystic fibrosis is a disease, which causes the mucus in
Rating:Essay Length: 1,244 Words / 5 PagesSubmitted: January 1, 2010 -
What Is E?
MATH TERM PAPER What is e ? Yield to the unique and extremely important constant , the constant e is the next important and irreplaceable number in math world. The constant e has a wide range of applications, in which made it so considerably important that many scientific foundations can not exist without the existence of e. “The value of e is found in many formulas such as those describing a nonlinear increase or
Rating:Essay Length: 744 Words / 3 PagesSubmitted: March 10, 2010 -
What Is Global Warming in Reality and How We Can Reduce Its Harmful Effects
What is global warming in reality and how we can reduce its harmful effects Centuries ago the earth was envisaged in a flaming explosion of volcanoes and melted lava. The earth cooled and life was reproduced. since the industrialization of civilization, the climate of the earth has faced an ever growing foreign factor. This factor is the emissions of the so called “greenhouse gases” that have caused the rapid increase in world temperatures. This
Rating:Essay Length: 1,358 Words / 6 PagesSubmitted: March 9, 2010 -
What Is Global Warming?
What is global warming? Scientists have discovered that concentrations of minor greenhouse gases in the atmosphere, particularly carbon dioxide are rising. Theoretically, these gases could trap more heat in the atmosphere, leading to a gradual warming of the Earth’s atmosphere. And, again theoretically, global warming could be harmful to the environment and to human health. The treaty, called the Kyoto Protocol, would require the U.S. to reduce its greenhouse gas emissions primarily carbon dioxide, methane,
Rating:Essay Length: 392 Words / 2 PagesSubmitted: January 25, 2010 -
What Is Mad Cow Disease?
WHAT IS MAD COW DISEASE? -Mad cow disease, formally known as Bovine Spongiform Encephalopathy (BSE). -Is a chronic degenerative disease that attacks the central nervous system of cattle. -Destroying brain tissue and eventually causing dementia and death. There is no known cure. IN HUMANS -In human beings it is known as the Creutzfeldt-Jakob syndrome -A rare neuro-degenerative disease that is a contagious form of spongiform encephalitis, -It is thought to be caused by a slow
Rating:Essay Length: 879 Words / 4 PagesSubmitted: April 26, 2010 -
What Is Malaria
Malaria is a vector-borne infectious disease caused by protozoan parasites. It is widespread in tropical and subtropical regions, including parts of the Americas, Asia, and Africa. Each year, it causes disease in approximately 515 million people and kills between one and three million people, the majority of whom are young children in Sub-Saharan Africa.[1] Malaria is commonly associated with poverty, but is also a cause of poverty and a major hindrance to economic development. Malaria
Rating:Essay Length: 415 Words / 2 PagesSubmitted: March 5, 2010 -
What Is Mutation? What Is a Gene Mutation? Discuss Sickle Cell Anemia (its Cause, Effect, and Treatment) B) What Are Mutagens and Their Effects? C) What Is Genetic Counseling? Discuss the Advantages and Disadvantages of This Procedure.
A mutation can simply be put as abrupt change in the genotype of an organism that is not the result of recombination. A gene mutation is a permanent change in the DNA sequence that makes up a gene. Mutations range in size from a single DNA building block (DNA base) to a large segment of a chromosome. Gene mutations occur in two ways: they can be inherited from a parent or acquired during a person’s
Rating:Essay Length: 876 Words / 4 PagesSubmitted: November 16, 2009