Biology is a natural science concerned with the study of life and living organisms‚ including their structure‚ function‚ growth‚ evolution‚ distribution‚ and taxonomy.[1] Modern biology is a vast and eclectic field‚ composed of many branches and subdisciplines. However‚ despite the broad scope of biology‚ there are certain general and unifying concepts within it that govern all study and research‚ consolidating it into single‚ coherent field. In general‚ biology recognizes the cell as the basic unit
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Section 1 : Identifying the Genetic Material Griffith’s Experiments In 1928‚ Frederick Griffith‚ a bacteriologist‚ was trying to prepare a vaccine against pneumonia. A vaccine is a substance that is prepared from killed or weakened disease-causing agents‚ including certain bacteria. The vaccine is introduced into the body to protect the body against future infections by the disease-causing agent. Griffith discovered that harmless bacteria could turn virulent when mixed with bacteria that cause
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Biology – HSC Online Extract from Biology Stage 6 Syllabus (Amended October 2002) © Board of Studies‚ NSW 9.2 Maintaining a balance: 1. Temperature range Background: All organisms are adapted to a particular environment with its characteristic temperature range. The temperature range allows the organism’s enzymes to control its metabolism by operating at their optimum efficiency within this range. Some organisms are adapted to live at high temperatures (80 - 100oC) and these are called thermophiles
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1. High-tech policies 1. A politics in which the behavior of citizens and policymakers and the political agenda itself are increasingly shaped by technology 2. Mass Media 1. Television‚ radio‚ newspapers‚ the internet‚ and other means of popular communication 3. Media events 1. Events purposely staged for the media that nonetheless look spontaneous. In keeping with politics as theatre‚ media events can be staged by individuals‚ groups and government officials‚ especially presidents. 4. Press
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Name: _____________________________________________________________ Date: _____________ |1. |At the global scale‚ political geographers study the spatial manifestations of political processes expressed in the organization| | |of territories with permanent population‚ defined territory and a government. These spatial units are called | |A) |countries.
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AP PSYCHOLOGY Chapter 8 Big Review Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In the early 20th century‚ psychologists were inclined to explain motivated behavior by attributing it to ________. A) learned responses B) emotions C) instincts D) incentives 1) 2) The theory stating that behaviors are motivated by the body’s attempts to reduce tension from conditions such as hunger or
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Chapter 15 Study Guide: The Age of Religious Wars and European Expansion 1. What caused the Revolt in The Netherlands? The Revolt of the Netherlands (1566-1587) By 1560s‚ Calvinism spread and appealed to the middle classes because of its intellectual seriousness‚ moral gravity‚ and emphasis on any form of labor well done Calvinism took deep root among the merchants and financiers in the northern provinces and working-class people also converted partly to please their employers In 1559‚ Philip
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Study Questions: Chapter 28 1.) Archaea and Bacteria are the oldest‚ structurally simplest and most abundant forms of life. 2.) Name and describe seven ways in which prokaryotes differ substantially from eukaryotes? Unicellularity- fundamentally single-celled Cell Size- can vary (large range changes with species) Nucleoid- lack a membrane-bound nucleus but rather a nucleoid region Cell Division/Genetic Recombination- binary fission (does not use spindle) and do not have a sexual cycle Internal
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1. Those who favored overseas expansion by the United States in the late nineteenth century argued that Correct Answer: All of the answers are correct. 2. The United States reasserted the Monroe Doctrine as a cornerstone of its foreign policy by Correct Answer: insisting that Britain submit its dispute with Venezuela over the boundary of British Guiana to U.S. arbitration. 3. Military strategist and historian Alfred Thayer Mahan advocated an American policy of Correct Answer: expanding
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People Elias Howe and Isaac Singer • Singer’s life was not going well in the beginning • He was penniless • Unsuccessful actor‚ ticket seller‚ carpenter‚ and inventor • By 1860‚ singer grew fabulously wealthy • In 1850‚ he had come upon and quickly improved a sewing machine similar to one patented in 1856 by Elias Howe. • Elias Howe sued Isaac Singer for patent infringement and won in 1854 • Since Singer lost‚ he had to pay Howe patent royalties John Deere • Was
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