Echinoderm Echinoderm diversity Scientific classification Kingdom: Animalia Subkingdom: Eumetazoa Superphylum: Deuterostomia Phylum: Echinodermata Klein‚ 1734 Subphyla & Classes Homalozoa † Gill & Caster‚ 1960 Homostelea † Homoiostelea † Stylophora † Ctenocystoidea † Robison & Sprinkle‚ 1969 Crinozoa Crinoidea Paracrinoidea † Regnéll‚ 1945 Cystoidea † von Buch‚ 1846 Asterozoa Ophiuroidea Asteroidea Echinozoa Echinoidea Holothuroidea Ophiocistioidea † Helicoplacoidea †
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disorder) to accord (or harmony). Where Hamlet differs from other revenge tragedies however‚ is in the manner that the revenge is carried out; while most other RT’s are accepted instantly and given courses of action‚ Hamlet’s hesitation and caution are what separates him from‚ say‚ Count Lodovico or Vindice (well known protagonists of plays that the learned
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CELL STRUCTURE CELL THEORY: Structural and functional unit of all living things New cells arise from already existing cells Cells contain information that instructs growth. This information can be passed onto new cells. MICROSCOPES: There are two main types of microscopes: Light and Electron Electron Micrographs- shown in colour LIGHT ELECTRON Uses beam of light Magnification = x1500 Resolution = 200 nm Wide range of specimens can be used Samples are fairly quick + easy to prepare
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it is possible that less of other solids was recovered. For example‚ if the entire initial amount of sand was recovered‚ but only half of the initial amount of salt was recovered‚ the sand would be a larger amount of the recovered solids. D. What were potential sources of error in this experiment? I found countless sources of error while I was performing this experiment. While the separation of the iron was very effective‚ I felt the other techniques allowed for a large margin of error.
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Cyclohexane: Two layers‚ top layer a bright orange color‚ the bottom a yellow color. Cyclohexene: Completely Decolorized Discussion: 1) Assuming the reactions of these hydrocarbons are typical of the classes of compounds which they belong what can you say about the relative relativities of the three classes? The Alkenes are the most reactive type of hydrocarbon as in both reactions ‚ they decolorized when bromine water was added‚ of which is usually brown‚ and when potassium
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education have important economic benefit to society. These three sectors have a close relationship‚ but the important relationship between educational and health‚ education and population‚ and health and population. There are many researchers have been conducting a research to illustrate the relationship between education‚ health and population. Cutler and Muney (2007) stated that education and health have a close relationship but complicated one. However‚ they did not provide enough information‚ Therefore
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PATTERNS IN NATURE – Summary Notes 1. ORGANISMS ARE MADE OF CELLS THAT HAVE SIMILAR STRUCTURAL CHARACTERISTICS 1.1 Outline the historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown The Cell Theory states that: All living things are made of cells (Theodor Schwann & Matthias Schleiden) Cells are the basic structural and functional unit of organisms (Theodor Schwann) All cells come from pre-existing cells (Rudolf Virchow) The historical
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Chemistry of Enamel Stephanie Gabrielle Estrada Texas A&M University- Corpus Christi Chemistry of Enamel Dentistry is a branch of medicine‚ in order to understand medicine including diseases related to the mouth‚ one must have a background knowledge over the chemistry of the enamel and how it interacts and takes place with compounds that are used in crowns‚ veneers and fillings. Enamel consists of approximately 96% inorganic minerals and 4% organic material. These inorganic components
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CHE 242 Tutorial 3: Problems & Answers Week 4: Feb 2- 6‚ 2009 1. Consider a gas that occupies 1.00 dm3 at a pressure of 2.00 bar. If the gas is compressed isothermally at constant external pressure‚ Pext‚ so that the final volume is 0.500 dm3‚ what is the smallest value Pext can have? Calculate the work involved using this value of Pext. Solution For compression to occur‚ the value of Pext must be at least as large as the final pressure of the gas. P1 = 2.00 bar‚ V1 = 1.00 dm3‚ V2 = 0.500
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believe that cricket had a relationship with politics in South Asia from 1880 to 2005. Their is many relationships with cricket and politics one of them is the way political leaders would be involved in the game of cricket because of the players being treated bad‚ also many petitions made towards them to help them out. Another relationship was the kind of people that were around the game of cricket that have a political title. Another great factor in the relationship between cricket and politics is
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