Practical 3 Investigation of Action of Saliva and Hydrochloric Acid in Two Carbohydrate Solution | Objective: 1. To show the action of saliva in two carbohydrate solutions. 2. To show the action of hydrochloric acid in two carbohydrate solutions. Apparatus & Equipment’s: Boiling tubes Metal test tube racks Beaker Graduated plastic dropper Water bath,~37°C Water bath,~95°C Stop watch Test tube holder Materials: Carbohydrate solution A Carbohydrate solution B Benedict’s solution 3M Hydrochloric
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Question 1 List and provide a brief discussion of the seven categories of toxic responses that a biological system may have. . There are seven categories of toxic responses: • Acute toxicity. This category is related to the immediate toxic responses that every biological system may have. This exposure of toxic substances for shorter duration and the diverse effect is high • Sub-chronic toxicity. This group results from exposure that is recurring numerous times. It is an ordinary human exposure
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Invasive Species Author’s Name Institutional affiliation Date Invasive species are non-native (plants or animals) to an ecosystem and their introduction is probable to cause human health, environmental, or economic damage in the ecosystem. Africanised bee (Apis hybrid), hybrid of European and African honeybees, is an invasive species in U.S.A. It invaded into Southwestern U.S northwards from Brazil (origin). The species can be curbed by cold temperatures (mild winter) which renders them
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Aim: To investigate the effect of changing the enzyme concentration on the rate of milk protein breakdown by Trypsin. Hypothesis: As the enzyme concentration increases so the does the rate of reaction. Equipment: * Milk Powder Solution * 2% Trypsin Solution * Distilled Water * 5 cm3 Syringes * 4 Boiling Tubes For Serial Dilution * 5 Boiling Tubes For The Main Practical * Stopwatch/Timer * Marker Pen * PAG 4.2 OCR Observation Sheet Health & Safety:
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ecology - [i'kɔlədʒi] - екология population - [,pɔpju'leiʃn] – популация community - [kə'mju:niti] – биоценоза ecosystem - ['ekosistəm] - екосистема adaptation - [.ædəp'teiʃn] – приспособяване, приспособление ecological factor – екологичен фактор ecological group – екологична група humidity - [hju:'miditi] – влажност mineral content – минерален състав microorganism - [,maikrou'ɔ:gənizm] – микроорганизъм germinate - ['dʒə:mineit] – покълвам inhabit - [in'hæbit]
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Ilar, Daniella Mei E. Ms. Janette Bala HRD 11 4 Methods of Proper Waste Management, Guest Post from Brenda Lyttle It is important how you carry out waste disposal. In today’s world where population is on the rise and so is rapid industrialization, creation of waste material is a common phenomenon. These wastes are harmful to the environment and how you dispose them off depends on how they affect the environment
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A Kinetics Experiment The Rate of a Chemical Reaction: A Clock Reaction Andrea Deoudes February 2, 2010 Introduction: The rates of chemical reactions and the ability to control those rates are crucial aspects of life. Chemical kinetics is the study of the rates at which chemical reactions occur, the factors that affect the speed of reactions, and the mechanisms by which reactions proceed. The reaction rate depends on the reactants, the concentrations of the reactants, the temperature at which the
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BACKGROUND Both mangroves and salt marshes occur in the intertidal zone: the area between terrestrial land and open salt water. Areas above high water level are increasingly restrictive on growth, and although some mangroves persist they commonly diminish in size and are soon replaced by saltmarsh communities more tolerant of hypersalinity. PART 1: ABOITIC FACTORS The main abiotic factors that will determine the structure of the salt marsh community are the salinity of the soil, the water content
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• HDAC is so important because... • HDACs are grouped into class I, II, III and IV based on their sequence homology to their yeast orthologues. HDAC 1, 2 and 3 are subunits of multiprotein nuclear complexes. HDAC4, 5, 7, 9 are defined by a large, functionally important N-terminal domain regulating nuclear-cytoplasmic shuttling and specific DNA-binding. HDAC6 contains two tandem deacetylase domains and a C-terminal zinc finger. • Many HDACs exist as components of multiprotein complexes and then
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Instructors name: Course title: Course code: Date submitted: Reflect on your experiences as a student in the industry of education: Qualified teacher know how to organize and teach their lessons on way which diverse students Can learn those subjects. The teachers of high quality teach well designed standards based Lessons and they always know how and why student learn. Cruickshank define effective teaching As that most people agree that
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