IGCSE Biology Notes Refined by KmQ Unit 1 : Characteristics of living things Biology is the study of living organisms. For something to be alive it needs to perform all seven functions of living things.MRS GREN Movement‚ Respiration‚ Sensitivity‚ Growth‚ Reproduction‚ Excretion‚ Nutrition. 1. Movement Most organisms are able to move their whole body even plants can shift their stem towards the sunlight and their roots move towards healthy soil. 2. Respiration IT is the breakdown of food
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CARIBBEAN EXAMINATIONS COUNCIL Caribbean Advanced Proficiency Examination Biology Syllabus Effective for examinations from May/June 2008 Correspondence related to the syllabus should be addressed to: The Pro-Registrar Caribbean Examinations Council Caenwood Centre 37 Arnold Road‚ Kingston 5‚ Jamaica‚ W.I. Telephone Number: (876) 920-6714 Facsimile Number: (876) 967-4972 E-mail address: cxcwzo@cxc.org Website: www.cxc.org Copyright © 2007‚ by Caribbean Examinations Council The Garrison‚ St
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Introduction to Aquaculture. MCQS. 1. The science of raising aquatic plants or animals is: (a) Apiculture (B) Sericulture (c) Aquaculture (d) Pisciculture 2. Aquaculture is totally dependent on the: (a) Quality of H2O (b) Quantity of H2O (c) Both quality & quantity of H2O (d) None of above 3. The newest kind of aquaculture in which cleaning & reusing of H2O occurs is: (a) Pens (b) Ponds (c) River (d) Recirculating tanks
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Umahmaa Ibrahim Thomas Orf Geography 1 10/ 6/ 2013 Chapter 11 Key Terms Q1: Contrast and explain the concepts of ecosystem and biome. A: An ecosystem is a natural unit consisting of all plants‚ animals and micro-organisms in an area functioning together with all the non-living physical factors of the environment. Among terrestrial ecosystems‚ the type that provides the most appropriate scale for understanding world distribution pattern is called a biome. Q2: What is an ecotone
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Homeostasis literally means “same state” and it refers to the process of keeping the internal body environment in a steady state‚ when the external environment is changed. The importance of this cannot be over-stressed‚ as it allows enzymes etc to be ‘fine-tuned’ to a particular set of conditions‚ and so to operate more efficiently. Much of the hormone system and autonomic nervous systems is dedicated to homeostasis‚ and their action is coordinated by the hypothalamus. In Module 2 we saw how
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The food process was directly affected by the rise in oil prices. As oil prices increased‚ fertilizer‚ food transpiration and industrial agricultural prices rose as well. Rice prices were up 217%‚ wheat 136%‚ corn 125% ‚ soybeans 107%‚ and the prices of meat and dairy more than doubled. Discussion after the food crisis focused on quick fixes of contributing factors—like
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Table of Contents 1. Introduction 1 2. Literature Review 5 2.1 Water resource management in Volos 5 2.2 Water management in Singapore 8 2.3 Water management in ArRiyadh 11 3. Conclusion 13 Reference 15 1. Introduction Water has always been of great importance in human development. Actually‚ human can not live without water within a certain time. Water quality management has been conducted since numeral disasters was caused by the water pollution hundreds years
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Maintaining a Balance 1. Most organism are active in a limited temperature range The role of Enzymes in metabolism‚ their chemical composition and specificity on substrates Role of enzymes * Enzymes are organic catalysts. They are protein molecules that increase the rate of the reactions in living organisms. * Without enzymes‚ metabolic reactions at body temperatures would be too slow to produce sufficient energy to maintain life * Intracellular enzymes are used in the cells
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What Is a Forest Ecosystem? Forests are important ecosystems that provide environmental and economic benefits. Forest ecosystems are unique environments and are categorized based on the types and ages of trees‚ climate and soil. They impact the environment at scales ranging from local to regional‚ by influencing climate‚ nutrient dynamics and water movement. Forests are found all over the world‚ and they provide valuable economic and environmental services. Information About a Forest Ecosystem
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Whereas there may be more than one way of classifying titles‚ here we classify them on the basis of their structure. Classified thus‚ titles fall into five categories: (i) indicative titles; (ii) informative or declarative titles; (iii) question titles; (iv) hanging titles; and (v) series titles‚ with main title and sub-title. Indicative titles Indicative titles state the subject of the study rather than its conclusion. Examples are: (1) Influence of stocking density and grazing management on
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