The Chemistry of Life 3.1 Chemical Elements and Water 3.1.1 State that the most frequently occurring chemical elements in living things are carbon‚ hydrogen‚ oxygen and nitrogen. Carbon‚ hydrogen‚ oxygen and nitrogen are the most frequently occurring chemical elements in living things. 3.1.2 State that a variety of other elements are needed by living organisms‚ including sulphur‚ calcium‚ phosphorus‚ iron and sodium. Other elements are needed by living organisms including sulphur‚ calcium
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TOPIC 5 ECOLOGY 5.1.1 The study of the interactions between organisms and their environment. ENVIRONMENT = all the factors that affect an organism. 5.1.1 ABIOTIC FACTORS = non-living factors in an environment BIOTIC FACTORS = living factors in an environment ABIOTIC BIOTIC water fish chemicals in water aquatic plant depth fungi temperature protists - algae light Relationship - Photosynthesis Wet lands = also called ‘estuary’ Ecosystem: - A stable‚ settled
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Topic 1- Exam Style Notes 1.1 Nature of Business Activity What is a business? * Business- decision making organisation using inputs to produce goods and services which satisfy the needs and wants of a customer * Factors of production- “CELL” 1. Capital- used to produce goods (non natural‚ eg machinery) 2. Enterprise- management/planning of factors of production 3. Land- natural resources; renewable and non renewable 4. Labour- physical and mental efforts of people
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Topic 9: Plant Science 9.1 Plant Structure and Growth 9.1.1 Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. Cross-section of a stem Part of plant | Purpose | Epidermis | Surface of the stem made of a number of layers often with a waxy cuticle to reduce water loss | Cortex Tissue | Forming a cylinder of tissue around the outer edge of the stem. Often contains cells with secondary thickening in the cell walls which provides
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IB Math SL Portfolio Body Mass Index (Type II) AmyXu April 11th/2012 In this portfolio‚ there will be investigations on the topic of the relationship between females of different ages and their body mass index (BMI-a measure of one’s body fat). Body mess index is calculated by taking one’s weight (kg) and dividing by the square of one’s height. ___________________________________________________________________________ While growing up‚ the
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c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI N06/3/ECONO/SP1/ENG/TZ0/XX/M+ MARKSCHEME November 2006 ECONOMICS Standard Level Paper 1 7 pages –2– N06/3/ECONO/SP1/ENG/TZ0/XX/M+ This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IBCA. –3–
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Extra Class In Mathematics Practice Paper #2 September 2‚ 2010 1. If h(x) = 1 + 3x and k(x) = x +2 ( CXC 1999 # 5 ) evaluate: a) hk (x) b) hk(4) c) (hk)-1 (x) 5 marks 2. Given that : f : x 3 – x and g: x x + 2 x – 5 a) Calculate g(2) b) State the value of x for which g(x) is NOT defined c) Derive an expression for gf(x) d) Calculate the value of f-1 (4)
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Nouchee Lor Mrs. Kottke IB HL English 11 October 2012 Reflective Statement “He was of medium height. His shapely‚ slim figure and broad shoulders gave evidence of a strong constitution‚ capable of enduring all the hardships of a nomad life and changes of climates‚ and of resisting with success both the demoralizing effects of life in the Capital and tempests of the soul” (Lermontov pg. 50). A true man is a man who takes responsibility. He is a man who takes responsibility
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OPA Circle Style The three circles; O‚ P and A intersect to create an interesting investigation regarding circles. Since this is a Calculus course‚ the investigation does have to deal with Derivatives. The most important and the focus of this portfolio is the line segment‚ OP’. Using the given diagram above‚ this investigation consists of finding the general equation for discovering OP’. The values that are given are that r‚ is the radius of C1 and C2. OP and AP are the radii of C3. This information
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IB Chemistry Summary- By Paul Li & Silvia Riggioni TABLE OF CONTENTS Table of Contents............................................................................................................................................................ 1 Atomic Theory................................................................................................................................................................ 3 The Electromagnetic Spectrum.............................................
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