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Question 8
Which is a description of an antigen? A. A chemical group on the surface of a pathogen. B. A chemical that kills bacteria or stops them dividing. C. A drug that i... show full transcript
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1.1 Cell Structure
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1.2 Cell Division
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1.3 Transport in Cells
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2.1 Organisation: Digestion
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2.2 Organisation: The Cardiovascular & Respiratory System
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2.3 Health & Disease
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2.4 Plant Tissues, Organs & Systems
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3.1 Communicable Diseases
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3.2 Monoclonal Antibodies
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3.3 Plant Disease
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4.1 Photosynthesis
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4.2 Respiration
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5.1 The Human Nervous System
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5.2 Hormones: Maintaining Blood Homeostasis
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5.3 Hormones in Humans: Reproduction & Metabolism
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5.4 Plant Hormones
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6.1 Reproduction
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6.2 Variation & Evolution
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6.3 The Development of Understanding of Genetics & Evolution
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6.4 Classification of Living Organisms
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7.1 Adaptations, Interdependence & Competition
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7.2 Organisation of an Ecosystem
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7.3 Biodiversity & the Effect of Human Interaction on Ecosystems
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7.4 Trophic Levels in an Ecosystem
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7.5 Food Production
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