developed flowers‚ which have distinct and pleasurable shapes‚ colors‚ smells‚ chemicals‚ and nectar to attract insects and birds‚ which help in pollination. Males developed microspores‚ which is pollen‚ and a reduced gametophytes. The pollen grain became very light weighted and easily blown about in order to increase motility. It is now possible for pollination to occur by wind‚ insects. In fact‚ many plants can even self-pollinate. The female also developed a reduced gametophytes‚ in the megaspore
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prominent and widely used products does not come unaccompanied. Genetically modified organisms have numerous effects that have become apparent‚ and many more that have yet to surface. The unintended relocation of transgenes that occurs through cross-pollination has a great potential to cause harm to other organisms. Those organisms eventually hybridize with close wild relatives‚ now scientifically enhanced‚ and produce undesired effects‚ many of which are still unknown. When hybrids survive and reproduce
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BIOLOGY Paper 2 Core 1 hour 15 minutes No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write in dark blue or black pen. You may use a pencil for any diagrams or graphs. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Answer all questions. 1 2 3 4 5 6 7 8 9 Total This document consists of 14 printed pages and 2 blank pages. IB10 11_0610_21/4RP © UCLES 2010 [Turn over 2 1 (a) Fig. 1.1 shows a mammal. For Examiner’s
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Monsanto Company is a global supplier of agricultural products that had sales in excess of $6.3 billion in 2005 (c-548). It sold genetically modified (GM) canola seeds in Canada and GM soybean seeds in the United States. The company developed a patented process in Canada that “covered the gene and process for insertion…and cells derived from that process‚” and in the United States covered the entire plant. By using this patented process‚ seeds had an increased resistance to glyphosate (many generic
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SCIENCE Reviewer SKELETAL SYSTEM consists of all the bones in the body give the body support and shape - for movement and protection 2 MAIN PARTS: 1. AXIAL skeleton- bones in the HEAD and TRUNK - SUPPORT and PROTECTION SKULL : helmet-like case that protects the brain called CRANIUM * The BRAIN is the control center of the body. BACKBONE or SPINE: 26 irregularly-shaped bones called
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Sample Paper – 2011 Class – X Subject – Science Time: 2 ½ Hrs General Instructions: I) ii) iii) iv) Maximum Marks: 60 The question paper comprises of two sections A and B. You are to attempt both the sections. The candidates are advised to attempt all the questions of Section A separately and Section B separately. All questions are compulsory. There is no overall choice. However‚ internal choice has been provided in two questions of five marks category in Section A and one question of 2 marks
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In his essay Are Engineered Foods Evil?‚ David H. Freedman sites a fact from the United Nations Food and Agricultural Organization which states “that the world will have to grow 70 percent more food by 2050 just to keep up with population growth.” (632) Due to this fact genetically modified organisms and crops will need to become widely adopted in order to feed the growing population of the world. “GM (genetically modified) crops…could produce higher yields‚ grow in dry and salty land‚ withstand
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issues. If people could only have the same fervency for human rights as they do for soccer who knows the impact it could have? This thought provoking idea is developed in Annan’s essay by comparing soccer’s intense competitiveness‚ teamwork‚ cross pollination and equality to the lack of with UN issues. In this easy read essay‚ Annan is able to effectively persuade the audience to agree with his opinion by organized comparisons‚ strong word choice‚ and appealing to the audience through a popular sport
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Chace Jensen Dr. Butler ENGL 1103 16 January 2012 A Small Extinction‚ A Big Problem Albert Einstein once said‚ “If the bee disappeared off the surface of the globe then man would only have four years of life left. No more bees‚ no more pollination‚ no more plants‚ no more animals‚ no more man” (“Einstein Once Said…”). After careful thought on this matter‚ this can be a scary concept to process. Millions of years have passed with the honey bee gracing the earth‚ and in fact‚ the honeybee is
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What is so special about the Orchidaceae? According to Greek mythology‚ there once was a satyr named Orchis who was celebrating in the festival of the god of wine. Having had too much to drink‚ he attempted to rape a priestess and as a result was killed by angry villagers. Orchis’ father prayed to the gods to bring his son back but the gods‚ being not especially fond of rapists‚ only returned Orchis as flowers. Thus‚ according to the Ancient Greeks‚ was the origin of orchids. However‚ with modern
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