1. The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today‚ that has been expanded into five kingdoms. Which of the following inventions was most responsible for creating the need for the additional three kingdoms and why? (2 points) (0 pts) Fossil fuel-based transportation made it easier to explore and discover new species. (0 pts) Genetic engineering created new species which then needed new kingdoms. (2 pts) Microscopes
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Part I.c – Summary of Observations Including Assessment of Business Risk Based on the financial ratios calculated‚ it appears that Pinnacle Manufacturing (the “Company”) is both using up cash assets and increasing its debt. The Cash Ratio has declined each of the past three years indicating that the Company has a decreasing ability to pay its current liabilities from cash and will be required to liquidate assets to pay off current liabilities. The Current Ratio has also declined each of the
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Biology 110-12 . 1. What are the five kingdoms and give a brief description of each kingdom? Answer: Monera- Single celled prokaryotes;bacteria Protista - Mostly single celled eukaryotes; Photoautotrophs (algae) and heterotrophs (protozoa) Fungi-Multicellular eukaryotes that feed by extracellular digestion and absorption Heterotrophs: includes decomposers‚ many pathogens and parasites Plantae-Multicellular photosynthetic autotrophs producers Animalia- Diverse multicellular heterotrophs Range from
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T H E HEAT O F NEUTRALIZATION O F STRONG ACIDS AND BASES IN H I G H L Y DILUTE AQUEOUS SOLUTIONS] Can. J. Chem. Downloaded from www.nrcresearchpress.com by 86.145.230.179 on 01/15/13 For personal use only. ABSTRACT Heats of neutralization of sulphuric and hydrochloric acids by sodium hydroxide have been determined‚ using a microcalorimeter of the Tian-Calvet type. The range of concentrations employed was 5x10-" N to 3x10-* N‚which is sufficiently low to permit an accurate extrapolation to be
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D4 H and E staining procedures Haematoxylin and eosin staining is a technique used by pathologists to add definition to nuclei and other parts of a cell in tissue samples under a microscope so that they can see it better when analysing the cells form and abnormalities. The H&E technique is the most commonly used in histology and the diagnoses of malignancies is based largely on the results of this procedure. The dyes will specifically stain elements of a cell or tissue because the dyes have a high
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Instructor: F. Hardy Office Hours: Office Phone: Course Catalogue Description: This course introduces college-level‚ thesis-driven‚ research-based writing with specific instruction in academic reading and writing‚ varied forms of essays‚ writing as a process‚ critical thinking‚ close reading and standards of academic discourse. Course Description: This content of the course includes argumentative and analytical writing‚ as well as techniques of basic research paper writing. The
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patient’s blood [H+] is A) one fourth normal B) one third normal C) half normal D) twice normal E) three times normal 2. The Henderson-Hasselbalch equation: A) allows the graphic determination of the molecular weight of a weak acid from its pH alone. B) does not explain the behavior of di- or tri-basic weak acids C) employs the same value for pKa for all weak acids. D) is equally useful with solutions of acetic acid and of hydrochloric acid. E) relates the pH
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What Do I Get From My Morning Coffee Some people are morning people‚ but I am not one of those people. Every morning it seems as if I am in a fog until that warm cup of coffee touches my lips. Similar to a drug habit‚ the more a person drinks coffee‚ the more it seems like that person can’t function without it. But what are you really getting from your coffee? Along with other factors‚ coffee can have both positive and negative effects on your health. Coffee improves the body’s tolerance to
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homework #2 1. For the HCP crystal structure‚ show that the ideal c/a ratio is 1.633. We are asked to show that the ideal c/a ratio for HCP is 1.633. A sketch of one third of an HCP unit cell is shown below. a c M L J K a Consider the tetrahedron labeled as JKLM‚ which is reconstructed as M L H J K The atom at point M is midway between the top and bottom faces of the unit cell __ that is MH = c/2. And‚ since atoms at points J‚ K‚ and M‚ all touch one another‚
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N08/4/BIOLO/SPM/ENG/TZ0/XX+ 88086004 Biology Standard level PaPer 1 Monday 17 November 2008 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES • • • Do not open this examination paper until instructed to do so. Answer all the questions. For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8808-6004 13 pages © International Baccalaureate Organization 2008 –– 1. Which of the following characterizes tissues? A. B. C. D. A group of cells
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