The human digestive system‚ like those of other vertebrates‚ is built around an alimentary canal - a one way tube that passes through the body. The function of the digestive system is to convert foods into simple molecules that can be absorbed and used by the cells of the body. Food enters the mouth‚ where the work of the digestive system begins. Chewing‚ which takes place in the mouth‚ seems simple enough - teeth tear and crush the moistened food to a fine paste until it is ready to be swallowed
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The Digestive Track The BIG MAC is placed in the mouth. The bread is mainly starch‚ the special sauce is mainly fat‚ lettuce‚ pickles‚ and onions are niacin. The beef patties are protein‚and cheeseis a form of calcium‚ fat‚ and protein. The piece of the BIG MAC is placed in the mouth and chewed‚ the starch is being digested by saliva. The starch becomes a kind of sugar which is used as a nourishment for the cells. Saliva changes food to a form that can be used by the body called enzymes.
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are several different organ systems in the human body. Two of those systems are the digestive system and the urinary system. Both systems remove waste from the body but in an entirely different way. They also maintain homeostasis within our blood stream. Both systems are critical for survival. This paper will describe how each of those systems works on its own and also how they work together to maintain homeostasis for the body. How the Urinary and Digestive Systems Work Together to Maintain
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“The Rat Trap” Literary Analysis Plot Summary: “The Rat Trap” by Selma Lagerlöf describes the life of a man who sells rat traps. The-rat trap peddler realizes that the whole world is a rat-trap. He falls into life’s rat-trap‚ starting when he stays at an old man’s house and succumbs to the temptation of stealing the man’s money. He avoids the town and wanders through the woods to escape being caught by the police. The rat-trap peddler stays at a furnace‚ where the ironmaster talks to him‚ thinking
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healthy five-week old albino Sprague Dawley® Outbred rats: (24 females) and (24 males) purchased from Taconic Biosciences‚ Inc. one month prior to the experiment. The rats were purchased one month prior so that they can be examined by a veterinarian to make sure they are healthy before the start of the experiment. Once the rats were deemed to be healthy they were then separated into their according groups in order to start the experiment. The female rats were separated into four groups‚ three experimental
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African tree toads live in tropical lowland forest. The African tree toad is mostly found in the central part of Africa‚ the main countries are: Cameroon‚ Equatorial Guinea‚ Gabon‚ Nigeria and Democratic republic of congo. The African tree toad’s habitat must have plentiful water supply for them to survive. In order for all living organisms to survive‚ food must also be available. The Nectophryne afra is a carnivorous amphibian‚ they eat small invertebrates‚ like insects‚ worms and spiders. There
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article and the lecture are both about the cane toad in Australia. The author of the article believes that it is possible to stop the spreading of the cane toad population. The lecturer casts doubt on the claims made in the reading. She thinks that taking the measures mentioned in the reading may be unsuccessful and seriously damage the ecology of Australia. First‚ the author points out that by using a nationwide fence the spreading of the cane toad can be stopped. The article mentions that this
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JETTY RATS Jetty Rats‚ by Phillip Gwynne‚ is a novel that explores the qualities of friendship. The text positions the reader to believe that friendship is a very important aspect in everyday lives and that it will be very helpful‚ but there will also be a lot of complex situations along the way. Friendships can grow between people of different genders‚ but love will become a factor. Secondly‚ friendships may grow between people who have close similarities but also differences. Thirdly‚ friendships
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example of crushing stone factory that how large stones are broken down into small particles in the factory and uses of these crushed stones in constructing roads‚ highways‚ bridge and buildings e.g. and prompted students to think about a system (digestive system) in the human body. Exploring: During exploration‚ students conduct various hands-on or problem solving activities and experiments designed to help them explore the topic and make connections to related concepts‚ often within groups or
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Humans and the Rat Respiratory System The human respiratory system is very similar‚ if not practically identical‚ to the respiratory system of a rat. The only notable difference is the division of the lobes in human lungs. The left lung of a rat is composed of 1 lobe‚ while the right lung has 4 lobes. The right lung of a human contains 3 lobes and the left lung is composed of 2 lobes. Other than that (and some structural differences along with size) the human and rat respiratory systems work in the
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