Diversity in Living Organisms Q 1 Name the branch of the biology that deals with the classification. Q 2 Who was the first to propose the two-kingdom system of classification? Q 3 Who proposed three-kingdom classification? Q 4 What is meant by triploblastic? Q 5 What is haemocoel ? Q 6 Name the person who has given the five-kingdom classification. Q 7 Which is the largest phylum of animal kingdom? Q 8 What is the function of canal system in sponges? Q 9 What are Gymnosperms
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References: Biology Department. 2014. Laboratory Manual for Introductory Genetics. Ottawa: Carleton University. Gómez‚ A. (1998). Allozyme electrophoresis: its application to rotifers. Hydrobiologia 387/388: 385-387 Micales‚ J.A.‚ & Bonde‚ M.R. (1995). Isozymes: Methods and Applications‚ CRC Press‚ 116-118. Laurie‚ C.C.‚ & Stam‚ L.F. 1988. Quantitative analysis of RNA produced by Slow and Fast alleles of Adh in Drosophila melanogaster
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Meiosis was discovered and described for the first time in sea urchin eggs in 1876 by the German biologist Oscar Hertwig. It was described again in 1883‚ at the level of chromosomes‚ by the Belgian zoologist Edouard Van Beneden‚ in Ascaris worms’ eggs. The significance of meiosis for reproduction and inheritance‚ however‚ was described only in 1890 by German biologist August Weismann‚ who noted that two cell divisions were necessary to transform one diploid cell into four haploid cells if the number
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A: Disorders of Swallowing : A: Disorders of Swallowing Paralysis of Swallowing Mechanism Whenever 5 th ‚9 th . And 10 th . cranial nerve damage it causes paralysis of swallowing center in brain stem. Disorders of Swallowing : Disorders of Swallowing Paralysis of Swallowing occur in: Poliomyelitis or encephalitis Muscle dystrophy Failure of neuro -muscular transmission ( as in myasthenia Gravis) A: Disorders of Swallowing : A: Disorders of Swallowing The most serious paralysis of swallowing
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Massachusetts‚ scientists reported a case where a cat turned up infected with a worm found in raccoons. (6) Cats are three to four times more likely to carry rabies then dogs (7) Cats are known to get many parasites or infectious microbes like roundworms‚ hookworms‚ giardia and campylobacter Premises+ sub-argument (3) = (8) Twenty common North American bird species have dropped by 68% since 1967. A variety of factors are to blame (9) In
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The mountain gorilla was first discovered roaming the Virunga Volcanoes in Rwanda (von Beringe‚ 2002‚ p.9). German Captain Robert von Beringe and his African soldiers stumbled upon two mountain gorillas around the volcanic region on October 17‚ 1902 (von Beringe‚ 2002‚ p.9). Von Beringe captured and killed one of them and sent the body to the Zoological Museum in Berlin‚ Germany. Professor Paul Matschie‚ who worked with the museum‚ identified the gorilla as a new class and named it after its founder:
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A Survey of Eukaryotic Cells and Microorganisms HISTORY OF EUKARYOTES: 1. Evidence indicates that the first Eukaryotic cells first appeared on the earth approximately 2 billion years ago. Fossilized cells appear in shale sediments from China‚ Russia and Australia the date from 850-950 million years ago. 2. Biologists have discovered evidence to suggest that the eukaryotic cell evolved from prokaryotic organisms by a process of intracellular symbiosis. 3. Some of the organelles that
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ampalaya is apparently beneficial. Reportedly‚ the extract from the leaves or roots shrinks hemorrhoids. The leaf juice is supposedly a good antitussive (i.e.‚ it stops cough)‚ antipyretic (i.e.‚ for fever)‚ purgative and anthelmintic (i.e.‚ against roundworms). Ampalaya(Momordica charantia) is also
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BHARATHI MATRIC HR. SEC. SCHOOL KALLAKURICHI STD: X SUB: SCIENCE PRE QUARTALY TIME: 3.00 MARK: 100 PART-A I. Choose the correct answer 15x1=15 1. Pick out the wrong statement (a) In a dicot seed there is a short longitudinal whitish ridge is called the Raphael (b) There is a minute opening in dicot seed is known as micropyle . (c) The rudimentary stem portion known as radical. (d) The rudimentary root portion is called radical. 2. The roots of coconut tree are seen
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bringing a cat into a bedroom will only make you suffer more. Limit your exposure to cats and restrict your kitty to certain sections of your home. Cats may pass on infectious diseases. 60% of all human pathogens such as rabies‚ hookworm ‚ringworm‚ roundworms‚ and plague could have been transmitted by
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