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» Browse Science and Environment Term Papers
Acupuncture
Number of Words: 946 / Number of Pages: 4
... the needles are so thin" (Weiss 73).
The question remaining involves the legitimacy of treatments. It has a long history of success in Asia dating back over 5,000 years (Duke 224). The method approaches problems as "patterns of disharmony" which are responsible for poor health in individuals (Consumer 55). Oriental acupuncturists believe that either yin or yang,
whose balance affects everything in the universe, influences each of the body's organs. They also believe that the body is full of pathways of energy called qi. restores the normal energy flow of qi that in turn helps the yin or ...
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Hemophilia 4
Number of Words: 1146 / Number of Pages: 5
... kind of clotting factor.
Both A and B forms have also been called the royal disease. Hemophilia was inherited by decedents of England's Queen Victoria and introduced into the royal houses of Spain, Germany, and Russia.
Hemophilia A and B are caused by genes that are sex linked and recessive. A defective gene on the X chromosome, one of the two chromosomes, that determine a person's sex. The Y chromosomes which has no genes for clotting is the other chromosome. Males have one X chromosome and one Y chromosome. Girls have two X chromosomes. A boy who inherits the hemophilia defect on his X chromos ...
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Cfcs Cause Deterioration Of The Ozone Layer
Number of Words: 2231 / Number of Pages: 9
... the
stratosphere. The stratosphere extends from roughly 6.5-30 miles from the
earth's' surface. The air on this region is much less dense than in the
troposphere, and it's a lot drier. The stratosphere is the area that contains
the majority of the ozone layer.
Past the stratosphere is the mesosphere which extends to 50 miles above
the planet. The last region is the thermosphere. The thermosphere's outermost
edge is roughly 600 miles above the surface of the earth. Beyond it, the
airless vacuum of space begins.
Oxygen is made up of two oxygen atoms that are bonded together. In the
periodi ...
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Dna Replication
Number of Words: 2173 / Number of Pages: 8
... DNA is built by simply adding nucleotides to its end. This strand grows inward towards the replication fork as the DNA molecule unzips. This strand ends with a hydroxide (OH) group and is called the 3` prime or 3`end. The enzyme that catalyzes this process is called DNA polymerase.
The second strand is built by having a polymerase jump ahead on the strand and fill in the complementary nucleotides backwards. This strand moves in the outward direction, hence away from the replication fork. The DNA polymerase for this strand starts a burst of synthesis at the point of the replication fork. The addition ...
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Water And Its Importance
Number of Words: 1880 / Number of Pages: 7
... properties protect aquatic life in freezing temperatures. All of these things combined help to sustain life and keep it constantly evolving. In the next couple of pages, we are going to go into detail of how it does this.
Water consists of two hydrogen atoms that are joined to one oxygen atom by covalent bonds. These bonds are polar bonds. The partial charges on different parts of water molecules produce weak attractive forces called hydrogen bonds. The hydrogen bonds are formed between the hydrogen of one water molecule and the oxygen of other molecules. Due to hydrogen bonding, water molecules wil ...
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Air Pollution
Number of Words: 726 / Number of Pages: 3
... reactive materials. For example, ozone, a dangerous pollutant in smog,
is produced by the interaction of hydrocarbons and nitrogen oxides under the
influence of sunlight. Ozone has also caused serious crop damage. On the other
hand, the discovery in the 1980s that air pollutants such as fluorocarbons are
causing a loss of ozone from the earth's protective ozone layer has caused the
phasing out of these materials.
Current information about the problem
The tall smokestacks used by industries an utilities do not remove
pollutants but simply boost them higher into the atmosphere, ther ...
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Meta Physics
Number of Words: 1495 / Number of Pages: 6
... know, and having this type of knowledge would truly earn the title of PAGE 1 Wisdom. Now finding the knowledge and answers would be very difficult but Aristotle believed what better way to obtain this then through the use of science. He knew that everything in science deals with learning using more than just senses. There are always deeper meanings and definitions when pertaining to science. In all types of sciences whether physics, ethics, politics etc. they will deal with discovering the "causes" and "reasons" to everything. Physics deal with what causes the material body to move, ethics with what ...
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Natural History Of The Lamprey
Number of Words: 1160 / Number of Pages: 5
... live in freshwater streams and seas of temperate and subartic regions throughout the world, except for Southern Africa. The sea lamprey is a marine species. They are native to the Atlantic Coast of North America and Europe. In many areas it has adapted to a life cycle spent entirely in freshwater. The sea lamprey invaded Lake Erie in the 1920’s, where its warm water was good for reproduction. They migrated to Lake Huron in 1939 and then to Lake Michigan. Within a few years, the lamprey had severely damaged the valuable trout fish in these lakes. They were competing with the fishing industry f ...
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Mitochondrial Dna
Number of Words: 349 / Number of Pages: 2
... Cells in the retinal area of the eye are triggered by photons that strike rhodopsin. When the rhodospin it activates the G protein, transductin, to travel to the effector enzyme, and thus regulates the levels of soduim ions (Na+). The eye cells become hyperpolarized, thus producing a negative charge, signaling visual data to the brain.
The two afore mentioned receptors are just hundreds that exist in the human body. All the receptors employ the help of G proteins to produce such signals. G proteins regulate the transfer of signals by transfering and connecting chains of proteins, known as al ...
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Aedes Aegypti
Number of Words: 933 / Number of Pages: 4
... black with regard to
the white palp tips (Russel 1996). The dorsal pattern of white scales on the scutum is in
the shape of a ‘lyre’ with two central based stripes that contrast with the dark scales
present on the insect (Womack 1993,
Russel 1996). Its wings are dark scaled and femur and hind legs are pale scaled for
about three-quarters, and dark scaled for about two-thirds (Russel 1996).
The first through the fourth segments of the hind tarsi are characterized by white rings
and the fifth segment is all white.
Adults can be found in abundance in towns and cities near human dwelling ...
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