... energy, they are able to separate and to overcome the force of the atmospheric pressure and form the gas (water vapor) that makes up the bubbles you see in the boiling process. The standard temperature at which this occurs is 100 C or 212 F. In the very early stages of heating, you may see some small bubbles even though the water is only warm. This is some air that is dissolved in the cold water and is being expelled by the heating. This is not boiling. As the water nears the boiling point, some areas of the container close to the heat source may be hot enough to cause some boiling in that area which produces some local bubbles. To be sure that all of the ...
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... of a DNA molecule, a mRNA molecule is built. This is accomplished by an enzyme which travels along a portion of DNA between two exons and attaches the opposing base pairs to the backbone of the mRNA (a structure composed of phosphates and ribose). The nitrogen bases of this new molecule are identical to that of the opposite side of the original DNA molecule except that the thymine has been replaced with uracil. The formation of this molecule allows for the construction of proteins in the ribosome without risking the DNA in the cytoplasm. The mRNA travels through the cell to a ribosome. Here tRNA which contain the appropriate anti-codon collect the amino acids code ...
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... consensus that the information reported in that article is true. One of the things he mentions is that the former Soviet Union had the largest big-warfare program in the world, with 32,000 scientists working on it. Much of it had to do with genetic engineering. In one of the projects they took smallpox, which has otherwise disappeared from the world, and found a way to genetically introduce into it, without reducing its efficacy as smallpox, either Ebola virus or equine encephalitis viruses. Nobody seems to know what happened to those experimental viruses. A third example: we now have plants genetically engineered to produce plastic. The idea is th ...
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... Vega written next to it. If your sense of direction is legendary you will have no problem finding this legendary star. Al-Waki or "The Falling" is the Arabic name for Vega, to the Greeks Lyra belonged to Orpheus who animated and inanimate objects and even the Lord of Death with his music. But most interesting of all in India it is also called Abhijit in Rg Veda and is associated with the creator. Yes, to the Hindu religion Abhijit is an infinitely important character recorded as the "the Truth of 12,000 years B.C." in the Mahabharat. Mahrshi Vyras recorded, in a section called Vana Parva, a dialog between Indra and Skandra. An excerpt from this is included as wretch ...
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... that had the marine institute logo on it so they decided to take a dive. They ended up diving right down to the steel boxes that contained the "White Sharks". The men were curious and so they opened the box. Nothing happened at first and then glowing eyes caught their attention. One guy was killed. The other guy managed to get away and swim for about 200 yards and then he was down. The men's bodies washed up on shored weeks later. That's when Chase and Tall Man knew there was something in the water and it was up to them to figure out what it was. More strange things were happening. The ocean life began to act strange and Chase couldn't figure out what tha ...
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... A catalyst speeds up the rate of reaction and remains chemically unchanged by the end of the experiment. A catalyst lowers the activation energy. This is the energy needed to start a reaction. The variable that I have decided to change is the temperature. I have decided to alter the temperature of the yeast and time the amount of carbon dioxide that will be given off at different temperatures. I have decided to time how much carbon dioxide is given off in five minutes. Throughout the investigation, I will keep the temperature the same as I have specified for each reading. For example, if I am taking a reading in which the temperature must be 5 d ...
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... Though recovered patients pose no serious threat, the virus is present up to 7 weeks after being treated. Vomit and diarrhea contain the infected blood and mucus so any contact with this, e.g. in poor drinking water can cause contraction of the virus. Luckily enough Ebola is not airborne and in some cases due to its self-limiting nature, it has been known to die out within a person before killing the host. In one case when a Swiss researcher found the Ebola Tai virus, she contracted it from a chimpanzee. This was during an investigation into the spur of deaths among them at the time. To this day, there is still no evidence as to what host carried the virus ...
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... In contrast, endotherms derive most or all of its body heat from its own metabolism (Campbells,p899). Because ectotherms do not produce their own heat, they cannot actively ensure their ideal temperature for an ideal metabolic rate (aquacult.htp). In the following experiment, we will attempt to examine the relationship between metabolic rate and environmental temperature in both an ectoderm and an endotherm. I predict that for the ectotherm, the metabolic rate will increase as the outside environment temperature will increase. I also predict that the metabolic rate in the endotherm will remain relatively the same as the outside environment temperature changes. I ...
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... the seven who died in this dumbfounding calamity, take a look at exactly what went wrong during this fateful mission, and the outcome from this sorrowful occurrence. First, who exactly were those astronauts that died on the Challenger? Sharon Christa Corrigan McAuliffe, born in 1948, was the famous winner of the teacher-in-space program, was a high school teacher at Concord, N. H., a wife, and a mother of two children. She touched the lives of all those she knew and taught. As a school official in Concord said after her death, "To us, she seemed average. But she turned out to be remarkable. She handled success so beautifully." She also wanted everyone to lear ...
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... normal chromosomes of 46, and some affected ones with 47. Translocation occurs when part of the twenty-first chromosome breaks off and attaches to another cell. The total number of chromosomes is 46, however the excess material from the twenty-first chromosome results in the affects of the syndrome. With translocation, most cases occur sporadically, with no bearing on maternal age. These two types of this syndrome are very rare, being responsible for only 6 or 7 percent of all cases. Children with Down syndrome are at high risk for health problems. These include congenital heart defects, respiratory problems, increased suseptibility to infections, ...
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