Rats are various medium sized rodents. "True rats" are members of the genus Rattus‚ the most important of which to humans are the black rat‚ Rattus rattus‚ and the brown rat‚ R. norvegicus. Many members of other rodent genera and families are also called rats and share many characteristics with true rats. A rat has an average life span of 2-3 years[1]. Rats are distinguished from mice by their size; rats generally have bodies longer than 12 cm (5 in). Contents [hide] * 1 Species and description
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love the peace of mind knowing there weren’t rats lurking in your walls? Rats create many problems in the world and I believe we should eliminate all rats. One reason rats need to be eliminated is they spread diseases. According to CDC (Centers for Disease Control) rats spread hemmoragic fever‚ Lassa fever‚ Leptospinosis‚ and many more. Having rats running around infected with possibly fatal diseases is far too dangerous. To emphasize the deadly effect rats have‚ we can look at the Black Plague‚ in
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pg. 462-464 a) Draw a diagram of the rat when it is first cut opened and the internal organs are exposed. Identify and label the diaphragm‚ the stomach‚ the small intestine‚ the caecum‚ the heart‚ the left and right lung‚ the trachea and the esophagus. (Note: see Figure 22 on pg 470 for an example) b) What structure divides the thoracic and abdominal cavities? The Diaphragm divides the thoracic and abdominal cavities. c) What is the sex of your rat? Male. Part C Digestive System pg 467
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Rat Dissection Prelab 1. Is your left like your right side? It should be similar to your right but there can be differences like if damage was done to one side or if one side was mutated and disfigured. 2. Name an animal that doesn’t have a left and right side. Snakes don’t have a left and right side but there is an interesting study about that which is that Adult snakes (16 of 20 snakes) preferred to coil in the clockwise direction. Many female snakes (15 of 20 snakes)‚ but few male
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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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Black Rat Biology Honors Paper The Rattus Rattus (black rat) is one of the most problematic invasive species in the world. Covering 80% of all archipelagos and are found on six continents. Black rats are mainly found on tropical islands such as the Galapagos‚ Hawaii and most of the islands in Central America. Rats prefer to live in areas filled with forests and shrubland‚ but can live on minimal vegetation. Scientists have been able to exterminate this invasive species from most temperate and sub
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vary between a deep grey to a reddish-brown and they can grow between lengths of 10-15cm long. Toads can be found in urban areas‚ as well as grasslands and woodland. Their diet varies quite a bit‚ and they eat almost anything they can swallow‚ including household scraps and pet food‚ but most of their diet consists of living insects. Rats are medium-sized rodents that are part of the mammal family. Rats are quite similar to mice but with a more distinct look. Their fur colour and differ between
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Brad Picard Mrs. Brousseau English 12 3 January 2013 The Genre of Horror: The Rats in the Walls The Rats in the Walls by H.P. Lovecraft is a horror story that portrays the overall mindset of a man who is trying to restore Exham Priory and the reputation of his family and ancestors from centuries ago. Delapore is a wealthy man who wants to rebuild his family home‚ even against the several horrible stories told by local villagers and his friend Capt. Norrys. Once his restoration of
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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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RAT POW Problem Statement: I this POW we were assigned to find the population of the exponential growth of a rat population‚ residing on a perfect‚ utopian island after a year. Organisms will flourish prosperity on the Island and no deaths would occur. The journey began when merely 2 full-grown rats‚ the one original male and female‚ arrived on the island. Their offspring would be determined by the following: Every day from January 1st‚ the original mother would give birth to a liter of
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