Papers on Science and Environment
Growth Rate Of A Seed
Words: 345 - Pages: 2.... ledge, where there was a large amount of light at all times. Each day I provided the seed with the equal amount of water. In this experiment I had one control which was the plant in the dark.
Results and conclusion: My hypothesis was correct. As you can see from the data graphs at first the seeds germinated at the same rate until the tip of the radicle broke trough and was visible. Afterwards the seed which was in the light grew more rapidly then the seed which was in the dark. I think this happened because when the seed is in the early stages of germination it does not use light to grow but is controlled by phytochrome. Which is a hormone .....
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Evolution From A Molecular Perspective
Words: 3032 - Pages: 12.... selections on these traits? Also, with the total knowledge of every
sequence of every amino acid chain in a person's genome, couldn't a laboratory
perceivably reconstruct an exact copy of, or clone, that person? These are all
issues that will have to be dealt with in the near future, but for now we need
only concern ourselves with the objective observation of these proteins in our
attempt to explain our ever mysterious origin. As humans, we are the first
creatures to question exactly where we came from and how we got here. Some
cling to religious creationism as a means, while others embrace the evolutionary
theory. As of now, and poss .....
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Fossil Fuel Consumption, CO2 And Its Impact On Global Climate
Words: 1552 - Pages: 6.... gross national product thus our economic
development, the major sources of energy (that is fossil fuels) are 'stock
resources'. Fossil fuels are consumed by use and the current consumption
patterns are non-sustainable. It is recognised that energy conservation and the
development of renewable energy sources will be needed to sustain economic
growth. The quantity of ultimately recoverable fossil fuels is limited by
geology and remains a matter of suspicion, but the view of the 1970s that
scarcity was imminent is still popular. It is the 1973 Oil Crisis marked the
transition from abundant, low-cost energy to an era of increasing prices and
sca .....
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Athrax
Words: 796 - Pages: 3.... (especially goat hair) of the infected animal. A skin infection begins as a raised itchy bump that resembles an insect bite, but within one to two days it develops into a vesicle and then a painless ulcer, usually one to three centimeters in diameter with a black necrotic (dying) area in the center of the ulcer. Lymph glands in the adjacent area may swell. About twenty percent of untreated cases of cutaneous anthrax will result in death (www.cdc.gov). Deaths are rare due to antimicrobial therapy.
When anthrax is contracted by inhalation the initial symptoms resemble a common cold. After several days, the symptoms may progress to a severe b .....
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Chemistry: Acid-Base Titration
Words: 496 - Pages: 2.... of an
indicator that had been added to the acid solution. Indicator was substance that
had distinctly different colors in acidic and basic media. Phenolphthalein was a
common indicator which was colorless in acidic and neutral solutions, but
reddish pink was result in basic solutions. Strong acid (contained H+ ion) and
strong base ( contained OH ) were 100% ionized in water and they were all
strong electrolytes. Procedure:
Part A. Investigating solid NaOH for use as a possible primary standard First of
all, The weight of a weighting paper was measured in analytical balance, then
added two pellets of NaOH and reweighed the total amount of .....
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Tomatoes
Words: 500 - Pages: 2.... family, this family contains many of our commonly cultivated plants (potato, peppers, eggplant, tobacco, petunias, tomatillo) and various weeds (nightshades, jimson weed). It may have been this association with the nightshades which originally led people to believe the tomato to be poisionous. It was therefore fortunate that Miller changed the species name to esculentum which roughly means "edible".
The common cultivated tomato belongs to the genus Lycopersicon. This genus exhibits a vast reservoir of genetic variability which remains largely underexploited. Some disease resistance, which is now a part of most commercially available .....
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Black Holes
Words: 3099 - Pages: 12.... space-time is extreme.
Moreover, the intense gravitational field of the black hole prevents any light
or other electromagnetic radiation from escaping. But where lies the “point of
no return” at which any matter or energy is doomed to disappear from the visible
universe?
The black hole's surface is known as the event horizon. Behind this
horizon, the inward pull of gravity is overwhelming and no information about the
black hole's interior can escape to the outer universe. Applying the Einstein
Field Equations to collapsing stars, Kurt Schwarzschild discovered the critical
radius for a given mass at which matter would collapse into a .....
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Value Of Environmental Agencies
Words: 990 - Pages: 4.... adopted to endemic disease
and have prevented them, in large part, by their adaptation to conditions of
life over the 20,000 years they have inhabited the tropical forest. With the
lumber companies invading these towns and villages, their western germs are
exposing isolated, once-contained people. Kathlyn Gay, author of Rainforests of
the World, mentions, “Indigenous people in many countries have died because of
contact with outsiders-usually whites of northern European extraction-who have
brought contagious diseases, ranging from measles to influenza, and sexually
transmitted disease”(20). With the importance of the land resources .....
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MP3paper
Words: 738 - Pages: 3.... I personally like MP3 the best because I find them to sound better. To play these files you need a MP3 player. There are a couple different types of players out on the internet. The most common player for MP3s is a program called Winamp.
Winamp can be found at Winamp.com. I personally like this player because it has a digital equalizer, which gives you more control over the sound of the music. This player reads the songs directly off the hard drive so there is no need for a disk, CD, or tape of any kind. This player also has a feature of a playlist where songs can be added or deleted. Which gives another reason to choose MP3s over a .....
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Healthcare And Coranare Heart Disease
Words: 2728 - Pages: 10.... which include lower levels of alcohol use and lower fat diets.
My stepfather had coronary heart disease. He talked about it freely before he passed away. Over the course of 10 years he had two triple bypass surgeries. He believed he contracted the disease due to poor diet, smoking and a family history of the disease. Throughout the entire time his outlook remained very positive. There were several dramatic changes that the disease caused. He quit smoking after the first heart attack. On the first year after surgery many things went on like they had before the surgery. Family activities didn’t change much. The only noticeable difference .....
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