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Mimicry In Nature
Number of words: 1457 - Number of pages: 6.... disguises that you've probably
never known you were being fooled by spiders impersonating ants, squirrels
that look like shrews, worms copying sea anemones, and roaches imitating
ladybugs. There are even animals that look like themselves, which can also
be a form of impersonation.
The phenomenon of mimicry, as it's called by biologists, was first
noted in the mid-1800s by an English naturalist, Henry W. Bates. Watching
butterflies in the forests of Brazil, Bates discovered that many members of
the Peridae butterfly family did not look anything like their closest
relatives. Instead .....
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Pesticides Are Affecting Our F
Number of words: 2666 - Number of pages: 10.... endocrine system.” Children are more likely to be affected by pesticides than adults because, they are strange eaters, they breath at a higher rate, and tend to spend more time on the ground were chemicals may settle and then enter a child’s body through breathing, orally, by touching something with a residue and then putting their fingers in their mouth, and through a child’s skin. Pesticides will drastically damage the future health of our children if people don’t act now.
CHILDREN’S HEALTH IS AT RISK THROUGH THE FOOD THEY EAT
Every year, tens of millions of pounds of carcinog .....
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The Problems With Acid Rain
Number of words: 1834 - Number of pages: 7.... the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens over a period of many years, some times decades. The changes are usually to gradual for them to be noticed early.
At the beginning of the 20th century most rivers/lakes like the river Tovdal in Norway had not yet begun to die. However by 1926 local inspectors were noticing that many of the lakes were beginning to show signs of death. Fish were found dead along the banks of many rivers. As the winters ice began to melt off more and mo .....
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Fetal Development
Number of words: 2666 - Number of pages: 10.... having about eight cells. After four
days it is in the uterus and has to "land" somewhere and
attach itself to the endometrium. The eighth day is when
implantation occurs. The fertilized egg then implants
itself on the endometrium, the uterine lining, and begins to
grow. The cell begins to grow and develop. By the 12th
day the blastocyst has approximately two thousand cells in
it. It has had time to attach itself to the endometrium and
these anchors are called protuberances.
Embryonic Development
After about three weeks the tiny little heart is
developed e .....
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Epilepsy Decision
Number of words: 1773 - Number of pages: 7.... It receives electrical signals from other neurons, and passes them to others. All the functions of the brain depend on electrical signals that are send from one neuron to another. The normal brain generates an electrical rhythm in order way and this order in epilepsy is broken by some neurons discharging signals. Because of some genetic defect there will occur a short electrical storm that is caused by neurons and the subject will get a seizure. This condition is called epilepsy. When this happens, the muscles tighten and relax rapidly or stop moving completely. When the cells stop sending .....
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Chromium
Number of words: 483 - Number of pages: 2.... (mixtures containing one or more metals) are used to make armor plating
for tanks and warships. They are also used for ball bearings and the hard
cutting edges of high-speed machine tools.
Nickel is highly resistant to electric current and is often added to
chromium steels to make them easier to work. For example, stainless steel
sinks can be pressed out from flat sheets of steel that can contain 18 percent
chomium and 8 percent nickel.
When nickel is mixed with chromium, the resulting metal can stand
very high temperatures without corroding. For example, the heat .....
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Celiac Sprue Disease
Number of words: 1518 - Number of pages: 6.... to gluten, a protein found in many cereal grains, principally wheat, barley, rye, and to a lesser degree oats. Most nutritionists agree that gluten is not present in rice, white or sweet potatoes, and corn.
Over 100 years ago a British physician named Samuel Gee described the "coeliac affection." Dr. Gee observed the syndrome in people of all ages, but especially in children who had chronic diarrhea, weight loss, edema, and a distended abdomen. The led to death unless cured by various diets. Many other physicians followed in the footsteps of this pioneer, prescribing diets based on rice, .....
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Lead And The Environment
Number of words: 871 - Number of pages: 4.... can be rolled into
sheets which can be made into rods and pipes. It can also be molded into
containers and mixed with other metallic elements.
Lead was used in ancient times for making coinage, art objects and water
pipes. One of the first known toxic substances, lead was used by the Romans for
lining aqueducts and in glazes on containers used for food and wine storage; and
it is suspected to have resulted in widespread lead poisoning. Members of the
famous Franklin Expedition to the Northwest Passage in the mid-1840s met a
similar fate, being poisoned from lead in solder, widely used at .....
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Carbohydrates
Number of words: 383 - Number of pages: 2.... organisms as disaccharides. Sucrose, commonly called cane sugar, is the form in which sugar is transported in plants from the photosynthetic cells to other parts of the plant body. Sucrose is composed of the monosaccharides glucose and fructose. In the synthesis of a disaccharide molecule from two monosaccharides, a molecule of water is removed in the process of forming the new bond between the two monosaccharides. This type of chemical reaction, which occurs in the synthesis of most organic polymers from their subunits, is known as condensation. When a disaccharide is split into its monosa .....
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Extra Sensory Perception
Number of words: 1353 - Number of pages: 5.... by
American psycologist J.B. Rhine. Dating from the early 1930s, Rhine's
tests at Duke University at Durham, North Carolina, remain the most quoted
examples of an expirimental blitzkreig on problems of parapsychology. Three
years of Rhine's telepathy and clairvoyance testing averaged 7 successes
out of every 25 people tested, 2 better than chance would have produced, an
overall result millions to one against the odd.
Chapter ][ What is ESP?
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What is ESP?
Extrasensory Perseption or ESP is the abillity acquire information
without using any senses. In the dictionary, ESP is .....
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