... Unlike other creatures that have inhabited the Earth, human beings are the first to possess the technological ability to cause wholesale extermination of species, genera or even entire families of living creatures. This process is accelerating. Wildlife management efforts initiated during this century have been unsuccessful in stemming the tide. Most public attention given to endangered species has focused on mammals, birds, and a few varieties of trees. Ecologists recognize a far greater threat to the much larger number of species of reptiles, fish, invertebrates, and plants that are being wiped out by human activity. In the past few decades, vast areas in ...
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... they were not fully aware consequences that would happen after many years of use. Power projects (later AECL CANDU), based in Toronto. Ontario and Montreal, Quebec became responsible for implementing AECL’s nuclear power program and marketing CANDU reactors. Nuclear power was cheap, if you did not have to worry about the waste. This was the answer to Ontario’s power problems, so they invested in the newest source of power at the time. Most people believed that nuclear power was a good change in Ontario’s power structure, and there would be no real problems in the future. Ontario needed a new source of power in the 1950s; they found it in nucle ...
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... We all know "that" fire is hot but do we know "why." We also know "that" water is wet but "why" is it wet. These were questions that nobody obtained the answers to but Aristotle was determined to 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 dea ...
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... water to be physically and chemically treated. CFCs were banned in '78 and a nation-wide toxic waste site cleanup program was developed in 1980. The EPA then evacuated Times Beach, Montana for dangerous levels of dioxin in soil, which was then criticized for its heavyhandedness and arrogance. Charges of mismanagement and undue political influence caused the head of the EPA to resign in '83. "The deputy director resigns because of charges of making a 'hit list' of employees to be hired, fired, or promoted because of political leanings. The former head of the toxic waste cleanup is found guilty of perjury and obstructing congressional inquiry. A regulation requir ...
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... proceso costoso y que lleva tiempo de realizar, convirtiéndose en mucho más difícil cuando las oficinas de la compañía se encuentran repartidas por todo del mundo. Incluso en las mejores condiciones, el compartir información entre programas, formatos de archivo y plataformas diferentes no es una tarea sencilla. Por medio de la misma tecnología que se aplica a Internet, las intranets solucionan este problema, consiguiendo que las comunicaciones y colaboraciones internas sean mucho más sencillas. Las intranets usan TCP/IP para transmitir información a través de la red, además de HTML para crear documentos. La información se guarda en uno o más servidores dentro de l ...
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... necessary to weigh the benefits and consequences of this relatively recent breakthrough and determine in which ways it can be used to humanity's best advantage. This speech will investigate the ways in which genetic engineering affects two important areas in today's society. The first one will be the improvement of the world's agricultural techniques. With an ever-increasing growth in world population, the Earth's resources are constantly becoming scarce. The advent of genetic engineering may be used to avert the occurrence of worldwide famine and starvation. The second one investigated will be in the field of medical development and study. Currently, genet ...
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... samples were contaminated because of the way they were handled. DNA Typing is not perfect. There are many loop holes in it. An example is the O.J. Simpson trial. During the process the DNA may be tampered with or damaged. In most rape cases DNA Typing is used by taking semen off the body of clothes then amplifying the genes. The machine that copies the DNA is called the PCR. The DNA is then cut and placed the wells in trays. PCR copies the small pieces of DNA. It is performed by a blotting process. This process has 21 different catogories. Other tests include those for tracing genetic diseases within families, finding the genes that cause genetic dise ...
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... beings may have evolved from ape-like creatures. Even with this, there are still disputes in the paleoanthropological field of whether or not this is true. Still, many choose to believe their religious creation stories where a God created humans. Whether it is Johanson's idea on human evolution or Leakey's or even the Roman Catholic's creation story, all are an individual own interpretation and neither wrong nor right. A paleanthropologist by the name of Donald Johanson is one of the many who have a very different view on the origin of humans. In 1974, he discovered forty percent of an individual dating back to 3.5 million years ago. The individual, Australopith ...
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... plant scientifically known as cannabis sativa. It is referred to as hemp when it is grown for its fibers, stem, and seeds. Its leaves and flowers produce the drugs marijuana and hashish. However, sterile breeds of the plant are still illegal to grow in the U.S. Literally millions of wild hemp plants grow throughout the entire Midwest today. Wild hemp, like hemp used for industry purposes, is useless as an intoxicant. Yet U.S. drug law states that one acre of this can result in the owner being sentenced to death. The death penalty exists for growing one acre of perfectly harmless, non-intoxicating weeds! Hemp can produce any product that paper can produce. The di ...
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... where they're almost extinct. By doing this comparison of the sea otters coastal system it was possible to gain much insight into the sea otter ecological role in kelp-forest ecosystem. Over the years it's been possible for us to observe the kelp-forest ecosystem over-time, thanks to the massive growth of the sea otters population we observed the change from otter- free to otter-dominated. This article relates to many aspects of our textbook. On page 89 in chapter 5 the text explains what an ecosystem is, defined by the book, it's a community of species interacting with one another where there is a non-living environment. In this case the otter and kelp-forests ...
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