1 Measuring and calculating equilibrium constants Clearly‚ if the concentrations or pressures of all the components of a reaction are known‚ then the value of K can be found by simple substitution. Observing individual concentrations or partial pressures directly may be not always be practical‚ however. If one of the components is colored‚ the extent to which it absorbs light of an appropriate wavelength may serve as an index of its concentration. Pressure measurements are ordinarily able to measure
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Unit 4 Ecosystems Background Introduction The abundance of a species and species diversity affect how natural resources are processed within an ecosystem. This pattern of processing contributes to functional and compositional characteristics of an ecosystem. But many ecosystems around the world are currently experiencing significant changes in species composition‚ abundance‚ and diversity due to the influence of human activity. These changes have‚ more often than not‚ led to a reduction in species
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Paper 1 Section A |Terms with *‚ mark deduction for spelling error. | |Marks | |1 | |D→E→B→C→A |(2) | | | |(1) (1) | | |2 |(a) |During the favourable season more secondary xylem cells are formed and they are larger
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take it up and animals may take it in when they breathe. If they do not excrete or egest it‚ it will accumulate in their bodies over time. Its concentration will therefore build up until eventually it may be high enough to kill the organism. Biomagnification: If a herbivore eats a plant which has chemicals in its tissues‚ the herbivore will take in the chemical. However‚ because the herbivore will eat many plants the concentration of the chemical in the herbivore will be higher than the plant. If
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Study Sheet for Biology SB4: Chapter 3 Concept Checks Concept Check 3.1: ~Animal Behavior: what an animal does as it interacts with its environment. ~ Immediate Cause: explanation of an organism’s behavior based on its immediate interactions with the environment ~Ultimate Cause: explanation of an organism’s behavior based on its evolutionary adaptations 1. Why do the whales blow bubbles when they touch the surface? What allows the whales to blow bubbles when they reach the surface? 2. Tinbergen’s
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POLLUTION Pollution is the introduction of contaminants into the natural environment that causes adverse change. Pollution can take the form of chemical substances or energy‚ such as noise‚ heat or light. Pollutants‚ the components of pollution‚ can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution. Forms of pollution The major forms of pollution are listed below along with the particular contaminant
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Science 10 Examination Booklet 2011/12 Released Exam for T/S Form A DO NOT OPEN ANY EXAMINATION MATERIALS UNTIL INSTRUCTED TO DO SO. Examination Instructions 1. On your Answer Sheet‚ fill in the bubble (Form A‚ B‚ C‚ D‚ E‚ F‚ G or H) that corresponds to the letter on this Examination Booklet. 2. Use a pencil to fill in bubbles when answering questions on your Answer Sheet. 3. When the examination begins‚ remove the data pages located in the centre of this booklet. 4. Read the Examination
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Current Status of Biological and Social Impacts of Marcopper Mining Tragedy in Marinduque Igual‚ Yna Maria L.; Maglente‚ Joan L.; Malabana‚ Don Ashley O.; Rillera‚ Kirk Thomas A.; Rosario‚ Francis S. Biology Student‚ Department of Biology‚ College of Science‚ Polytechnic University of the Philippines. Abstract Marinduque’s mining-environmental issues are not unique within southeast Pacific and Southeast Asia. A number of large-scale metal mining operations across the region are gaining
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CDC1 Study Questions LIVING ORGANISMS CELLULAR CHEMISTRY CELL BIOLOGY GENETICS PLANT BIOLOGY INVERTEBRATES AND VERTEBRATES ECOLOGY LIVING ORGANISMS CLASSIFICATION Compare and contrast living and nonliving things. What is biology? The study of living things (science of life) Describe characteristics found in all living organisms. * Living things are made of cells. * Living things obtain and use energy. * Living things grow and develop. * Living things reproduce
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Living in the Environment : Concepts‚ Connections and Solutions Miller and Spoolman 16th Edition Practice Questions: Chapters 1-25 2009 - 2010 Practice Questions – Chapter 1 Environmental Problems‚ Their Causes‚ and Sustainability 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Describe what is meant by the phrase “an environmentally sustainable society” as related to the human population. Distinguish between (a) natural capital (b) natural resources (c) natural services (d) solar capital
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