... are completed the annulus dries out releasing the spores. The spore germinates and grows into a prothallus which is the gametophyte generation. The antheridia and the archegonia are developed on the bottom of the prothallus. The archegonia are at the notch of the prothallus and the antheridia are located near the tip. Fertilization occurs when outside moisture is present and the sperm from the antheridia swim to the eggs of the archegonia. A zygote is formed on the prothallus and a new sporophyte grows. 4. Flowering plants have unique characteristics that help them survive. One is the flower itself that contains the reproductive structures. The color of th ...
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... bore a 5 in hook -shaped, retractable claw that must have been a formidable offensive weapon. Deinonychus is known from fossil remains found in south central Montana during the 1960’s. It was a carnivorous, bird-like creature with characteristics similar to that of a Velociraptor ( one of the stars from Jurassic Park ). This fearsome beast was quite a ravage hunter. The Deinonychus attacked its larger prey in packs and often were successful in doing so because of their menacing claw. By hunting in groups, members of the Deinonychus pack have brought down dinosaurs much lager than themselves. Proof of this occurrence has been found today due the discovery of ...
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... our presence" (Kralijic, 1992). Ways must be found to lessen the threat of this growing crisis. If this effect were to continue and grow, the earth’s population would be exposed to serious threats. Carbon dioxide is essential for plants who use it for photosynthesis, yet too much can lead to serious threats. The problem lies in the disruption of the balance between how much carbon dioxide plants intake, and what our population produces. If this natural filtering process is unbalanced, the atmosphere will receive too much carbon dioxide and other greenhouse gases. Once these gases form in the atmosphere, they act as barriers trapping in heat and warming the earth. ...
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... and a possible source of furs or mineral wealth. Finding a reliable or accessible water source, and timber for building was difficult to find. There was a lack of land that could be irrigated easily. By the turn of the century, most present day cities and towns were already established. Trails, roads, and railroads linked several areas with neighboring regions. Although the drainage system was still not integrated. In the mid 1900’s many dams had been built to harness and use the water. A new phase of development occurred at the end of the second World War. There was a large emphasis on recreation, tourism, and environmental preservation. The terrain of the i ...
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... teeth because they are carnivorous. The canine teeth are also used to defend themselves and their families. They can put a deep wound in a predator. The also has very strong legs, like us, so it is able to walk on two legs. This means it can walk on two legs and swing from branches whenever needed. It has small pouches in it’s cheeks so it can store excess food when needed. There are many other facts about the . They are highly intelligent like humans and other primates. They are the largest of the baboons and most common. They are mostly found in southern Africa. s live in groups together which can be from 10-200 of them. Their faces resemble a dogs f ...
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... Carbon black is used in rubber products and paint. Charcoal is used as a cooking fuel and ivory black, made by heating ivory, is used as a pigment in paint. Most carbon occurs in combination with other elements. For example, the carbon dioxide in the air is a compound of carbon and oxygen. Other compounds containing carbon include minerals such as limestone, and fuels such as coal and petroleum. Carbon compounds make up the living tissues of all animals and plants. There are over one million known carbon compounds (still growing rapidly every year), which is over the sum total of all the other elements combined. The largest group of these compounds ...
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... became an "organic soup". Eventually, the proteins in this "organic soup" joined, a membrane grew around the proteins, and the first complete cell was formed (Dawkins 16). According to evolution, this process was the beginning of life. But, there are minimal chances that this organic soup would form. Consider the experiment of Stanley Miller. In 1953, Stanley Miller passed an electric spark through an atmosphere of hydrogen, methane, ammonia, and water vapor; an atmosphere similar to the so-called "primitive atmosphere." But, this produced only 4 out of the 20 amino acids essential to form life. Interestingly, though, Miller saved the four amino acids only by removi ...
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... One writer uses the analogy of a “mixing bowl” to describe the earth. This “mixing bowl” that is our earth is constantly being manipulated to create the perfectly balanced “mixture” (Huber). Since there will never be a perfect balance or “mixture”, what is the point of even trying? Maybe they are right in saying that we will never find the perfect mixture, but this negative attitude is part of the problem. Nothing will be accomplished unless we reject apathy and negativity. One writer, T.H. Watkins, has criticized the idea of putting a “price tag” on the earth. He thinks that it is wrong to assign a value to out planet. How can we possibly give a moneta ...
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... into two groups: malignant and benign. Malignant tumors, or abnormal tissue, grow more rapidly than benign tissue and they invade normal tissue. Benign tissue is structured similar to normal tissue while malignant tissue is abnormal and has an unstructured appearance. Of greater importance, benign tissue does not metastasize, or begin to grow in other sites, like malignant tumors do. Cancer always refers to metastasized tumors but the term tumor is not always necessarily cancer. A tumor is any living tissue that is #1 distinguishable as abnormal living tissue. After a cancer forms, it can also change from a benign to a malignant state, theref ...
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... structures and physiology of the body. ... unfortunately, there is very little to be found in the literature on the physiological effects of massage and very few scientific studies have been undertaken in this area." Furthermore, the small amount of empirical research that does exist, more often than not, does not define the kind of touch or massage methodology employed, and massage is often rolled in with a range of other therapeutic methods (Westland 1993). Nevertheless, interest in massage as a valid means of therapy is on the increase and in particular in the West, where stress is one of the most commonly experienced states, massage has a clear role to play in ...
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