Complete set of concise, modern presentations and associated PDF worksheets for Edexcel IGCSE Biology (4BI0) Chapter 6 - Ecology and the Environment. Contains colour coded specification points with handmade vector graphics. Eight presentations and companion worksheets included: 49 - Ecosystems 50 - Biodiversity 51 - Biotic and Abiotic Factors 52 - Feeding Relationships 53 - The Carbon Cycle 54 - The Nitrogen Cycle 55 - Pollution and Global Warming 56 - Deforestation

A useful resource for students to practice their knowledge and examination technique for future external assessments. The questions found in these papers are completely original and have been designed from scratch. There has been no reuse of previous exam questions. This is for the following papers: 4SD0 - 1B, 1C and 1P For 1B: Our mock paper follows the format of the true Edexcel IGCSE Biology 1B paper closely, with the CORMS and graph question included. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 2d - Movement of substances into and out of cells (including practical 2.17 (2.15 – 2.17) • Topic 2g - Gas exchange (including practical 2.50) (2.46 – 2.50) • Topic 2h - Transport (2.51 – 2.54, 2.59 – 2.62, 2.65 – 2.69) • Topic 2j - Co-ordination and response (2.80 – 2.94) • Topic 3a - Reproduction (3.1 – 3.9, 3.11 – 3.13) • Topic 3b - Inheritance (3.14 – 3.15, 3.19 – 3.20, 3.22 – 3.34, 3.38 – 3.39) • Topic 5b - Selective breeding (5.10 – 5.11) For 1C: Our mock paper follows the format of the true Edexcel IGCSE Chemistry 1C paper closely. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 1a - States of matter (1.1 – 1.4) • Topic 1c - Atomic structure (1.14 – 1.17) • Topic 1e - Chemical formulae, equations and calculations (including practical 1.36) (1.25 – 1.33, 1.36) • Topic 1g - Covalent bonding (1.44 – 1.51) • Topic 2c - Gases in the atmosphere (2.9 – 2.14) • Topic 2h - Chemical tests (2.44 – 2.50) • Topic 3b - Rates of reaction (3.9 – 3.13) • Topic 4b - Crude oil (4.7 – 4.18) • Topic 4c - Alkanes (4.19 – 4.22) For 1P: Our mock paper follows the format of the true Edexcel IGCSE Physics 1P paper closely. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 1b - Movement and position (including practical 1.5) (1.3 – 1.10) • Topic 2c - Energy and voltage in circuits (2.7 – 2.21) • Topic 3b - Properties of waves (3.2 – 3.9) • Topic 4b - Energy transfers (4.2 – 4.10) • Topic 5b - Density and pressure (5.3 – 5.7) • Topic 7b - Radioactivity (7.2 – 7.15) • Topic 8b - Motion in the universe (8.2 – 8.6) Disclaimer: This document was created by department heads with many years of experience teaching the Pearson Edexcel IGCSE Science course. We cannot however guarantee that it is an accurate representation of upcoming examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

The complete AQA AS Level Biology course from start to finsh. Huge bundle of resources with every topic covered. Please note - this is for the first year of A Level. The Complete 2 Year Course is also available to purchase. Complete set of concise, modern presentations for AQA AS Level Biology (7401) Chapters 1 - 4. Contains colour coded specification points with handmade vector graphics. Thirty five presentations included: 1 - Monomers and Polymers 2 - Carbohydrates 3 - Lipids 4 - Proteins 5 - Enzymes 6 - Factors Affecting Enzymes 7 - DNA and RNA 8 - ATP, Water and Inorganic Ions 9 - Eukaryotic Cells 10 - Prokaryotic Cells and Viruses 11 - Analysing Cell Components 12 - Cell Division 13 - Cell Membranes 14 - Transport Across Membranes 15 - The Immune System 16 - Immunity, Vaccines and Monoclonal Antibodies 17 - HIV and Viruses 18 - Size and Surface Area 19 - Gas Exchange 20 - Gas Exchange in Humans 21 - Lung Disease 22 - Digestion and Absorption 23 - Haemoglobin 24 - The Circulatory System 25 - Cardiovascular Disease 26 - Xylem and Phloem 27 - DNA, Genes and Chromosomes 28 - Transcription and Translation 29 - Meiosis and Genetic Variation 30 - Mutations 31 - Genetic Diversity 32 - Natural Selection 33 - Classifying Organisms 34 - Biodiversity 35 - Investigating Variation