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» Browse Science and Environment Term Papers
Nature Vs. Nurture
Number of Words: 595 / Number of Pages: 3
... gender roles described themselves as more traditionally
feminine” (Handout - Diversity and Community).
I believe that one's immediate family, rather than society, has a
greater influence on gender roles. For example, girls who group up without
a mother or older sisters tend to be less feminine because all they have
are male role models. Another example of how the family influences gender
roles is whether or not the mother works. A housewife who believes that
the home is where she belongs tends to influence her daughter in thinking
the same way. One of my close friend's mother is a housewife and ...
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Plants
Number of Words: 1780 / Number of Pages: 7
... for life.
Cell Structure and Function
The tremendous variety of plant species is, in part, a reflection
of the many distinct cell types that make up individual plants. Fundamental
similarities exist among all these cell types, however, and these
similarities indicate the common origin and the interrelationships of the
different plant species. Each individual plant cell is at least partly
self-sufficient, being isolated from its neighbors by a cell membrane, or
plasma membrane, and a cell wall. The membrane and wall allow the
individual cell to carry out its functions.
Tissue Systems ...
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Science Experiment On Odor Changes Of Various Chemicals
Number of Words: 1820 / Number of Pages: 7
... methyl alcohol.
RESEARCH OF THE PROBLEM
To start my project, I researched vinegar. Vinegar is a sour liquid with a pungent odor, containing acetic acid, and is made by fermenting dilute alcoholic liquids such as cider, wine, or other fruit juice. Vinegar is used as a condiment, preservative, and in certain medicines (2: 1214).
Ethyl Alcohol is also used in medicines. The formula for this is C2H5OH. It is a colorless liquid with mild characteristic odor. Also known as ethanol, the compound is miscible in all proportions with water or ether (1: 361-362). When ignited, ethyl alcohol burns in air ...
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History Of Cell Membrane
Number of Words: 414 / Number of Pages: 2
... attracted to fat solvents) could easily cross this cell membrane, however larger lipid insoluble molecules could not. He also observed that small polar molecules could slowly cross the membrane. Other experiments with the likes of hen eggs suggested the presence of a lipid layer in the membrane. These results became known to biologists across the world and it was generally accepted that a semi-permeable lipid membrane surrounded some if not all cells (2).
Although this was opening new doors for cell biologists, the information was widely disregarded. One hundred years ago biological fact was ...
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Animal Testing: Animals Suffer
Number of Words: 1453 / Number of Pages: 6
... that has been gotten from them. Peter
Singer the author of a piece called “Animal Experimentation” in the book
Intervention and Reflection displays and evokes the actual suffering of
many harmless animals.
"In 1953 R. Soloman, L. Kamin, and L. Wynne, experimenters at
Harvard University, placed forty dogs in a device called a 'shuttle
box,' which consists of a box divided into two compartments,
separated by a barrier. Initially the barrier was set at the
height of the dog's back. Hundreds of intense electric shocks were
delivered to the dogs' feet thr ...
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Interstellar Travel: Sooner Or Later?
Number of Words: 1078 / Number of Pages: 4
... in science fiction. Before this can become a reality, three scientific breakthroughs are needed: discovery of a means to exceed light speed, discovery of a means to propel a vehicle without propellant, and discovery of a means to power such devices. Why? - Because space is big, really, really, really big." (Why is Interstellar) For any human to ever reach another star, speeds greater than comprehension would be needed. Millis illustrates this idea on his web site, "The most obvious challenge to practical interstellar travel is speed. Our nearest neighboring star is 4.3 Light Years away. Trip t ...
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El Nino La Nina
Number of Words: 622 / Number of Pages: 3
... Pacific water is pushed westward by the trade winds, that water flows toward Asia and makes room for the colder, deep sea water, to rise and flow to the Americas. Because cold water doesn't evaporate, there is a large reduction in the formation of storm clouds. The weather patterns of La Nina are basically an exact opposite of El Nino. Strong high pressure systems form over the Pacific and low pressure systems are discovered over Australia. Westerly trade winds push the warm waters west. The once thick cloud cover over the equator is split. Because of the opposite pressure systems, the Jet Stream i ...
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Computer Virus
Number of Words: 701 / Number of Pages: 3
... or at least cause some kind of unexpected or unwanted behaviour. Sometimes es just eat up memory or display annoying messages, but the more dangerous ones can destroy data, give false information, or completely freeze up a computer. The Stealth_c virus is a boot sector virus, meaning that it resides in the boot sectors of a computer disk and loads into memory with the normal boot-up programs. The "stealth" in the name comes from the capability of this virus to possibly hide from anti-virus software. Virtually any media that can carry computer data can carry a virus. es are usually spread by
data disk ...
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Freezing Point
Number of Words: 510 / Number of Pages: 2
... even though cooled below their freezing points. A liquid may
remain in this supercooled state for some time. This phenomenon is
explained by molecular theory, which conceives the molecules of a solid as
being well ordered and the molecules of a liquid as being disordered. To
solidify, a liquid must have a nucleus (a point of molecular orderliness)
around which the disordered molecules can crystallize. The formation of a
nucleus is a matter of chance, but once a nucleus forms, the supercooled
liquid will solidify rapidly. The freezing point of a solution is lower
than the freezing point of the pure ...
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Yeast
Number of Words: 657 / Number of Pages: 3
... this appeals most to the , causing it to grow at a rapid rate.
Just like any other organism, in order for to survive they need to have a significant amount of nutrition. Unlike plants, lacks the chlorophyll needed to create its own food. It feeds on the sugar of many different resources to stay alive. Some of the most popular are different fruits and nectars. Also, molasses seems to be a prime choice as the feeding ground for .
When the yeast has finished retrieving nutrients from the sugars, it produces enzymes which are used in many different ways. Some yeast break down sugar in ...
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