Marsupials Abstract Metatheria (Marsupalia) originated upon Laurasia in the Cretaceous with the oldest fossilised remains having been dated to 125 Ma. The first period of metatherian diversification occurred in the late Cretaceous. The K-T mass extinction created an ecological void in which mammalian radiation occurred in the Palaeocene. With South America isolated from North America throughout the Tertiary‚ there was the second great period of metatherian diversification and there were numerous
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The Extinction of Baiji The Baiji‚ also known as the Chinese River Dolphin‚ are part of the family Plantanistiade‚ the river dolphin family. They had exsited in the Yangtze River in China for thousand of years. Nevertheless‚ the Baiji was recently declared extinct. The baiji’s demise can be attributed to over fishing‚ its lethal environment and the Great Leap Forward in China. Excessive and illegal fishing was a great threat to the baiji’s way of life. Electric fishing and the fishing method
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BIODIVERSITY AND EXTINCTION Biodiversity is determined by the variety of species extant in a specific ecosystem; this includes both animals and plants. Biodiversity is what gives an ecosystem a continuing and symbiotic relationship between all the organic and inorganic elements; maintaining the proper balance of different gases such as nitrogen‚ oxygen‚ hydrogen‚ carbon dioxide and many other elements‚ which differ in composition depending on the type of environment (such as subterranean‚ aquatic
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GMO’s inside a lab and work to expel the uncontrolled production of GMOs‚ because of the fact that the genetically modified organisms can interact with the environment and cause the transfer of harmful genes which can lead to the elimination and extinction of all natural organisms. It may not be a well known fact but GMOs have greatly increased our quality of life. GMOs have mainly helped our agricultural industries by increasing the size and the quality
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Crystal Mateo October 15‚ 2012 Dear School Board‚ I support the book A Bad Beginning: A Series of Unfortunate Events by Lemony Snicket‚ and believe it should be included on the local elementary school’s 4th grade required list. This book teaches children that not all tales end in a happy ending‚ similar to life. Lemony Snicket prepares our children to face tragedies. In the real world “bad things” can also happen to “good people” and by providing a story to explain the concept of life to
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A Series of Unfortunate Events: The Bad Beginning By: Lemony Snicket This book by Lemony Snicket is about three Baudelaire children who have bad luck. Their names are Violet ( the oldest)‚ Klaus ( the middle aged child)‚ and Sunny ( the youngest). Their bad luck starts off when their house gets burnt down while their parents were inside. Then after they found out that they no longer had a house and their parents were dead they became orphans. They first lived with Mr. Poe for a few days.
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According to “Why Bee Extinction Would Mean the End of Humanity” written by Ishan Daftardar‚ Not only would humans be affected but animals a well. Cattles depend on alfalfa and lupins‚ both of which depend on insect pollination. No bees‚ means no milk or meat. The extinction of bees would also affect our fuel and clothing. Canola‚ responsible for fuel and cooking oil‚ needs bee pollination. We need
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This theory was first introduced by physicist Luis Alvarez and his son geologist Walter Alvarez (Vergano). Later on other scientist backed up the Alvarez’s asteroid extinction theory with geological evidence. Proof of the asteroid collision was found in Chicxulub‚ Mexico with the discovery of a gargantuan crater that was more than 110 miles wide (Vergano). The explosion that created the crater would have been made by
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Colegio Dr. Roque Diaz Tizol Yabucoa‚ P.R. The Mesozoic era Bilogy Class Mr. Kim 10th grade 1 /27/ 14 Introduction In this report I will be explaining a few facts about the Mesozoic era coming from the documentary “The day the Mesozoic Died”. This small film expresses how in many ways these creatures once inhabited our planet and disappeared completely in almost a blink of an eye. The Mesozoic Era could also be described
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Character Q: Who are the main characters in the story? A: The main characters in the story are Violet‚ Klaus‚ Sunny‚ and Count Olaf (a.k.a Stehpano). The series and book revoles around these characters. Without them‚ there wouldn’t be a story. Uncle Monty‚ on the other hand‚ is more of a side character. He may be looking after the Baudelaire children‚ but he is still just there to be a filler. Q: Choose a character. Why is this character important in the story? A: Violet Baudelaire would
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