IB Biology SL C3.2.17 Herd Immunity Topic Practice

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A Unity and Diversity

B Form and Function

C Interaction and Interdependence

C1.1 Enzymes and metabolism

C1.2 Cell respiration

C1.3 Photosynthesis

C2.2 Neural signalling

C3.1 Integration of body systems

C3.2 Defence against disease

C3.2.1—Pathogens cause infectious diseases

C3.2.2—Skin and mucous membranes

C3.2.3—Blood clotting

C3.2.4—Innate vs. adaptive immune system

C3.2.5—Phagocytes

C3.2.6—Lymphocytes

C3.2.7—Antigens

C3.2.8—B-lymphocyte activation

C3.2.9—Clones of plasma cells

C3.2.10—Immunity from memory cells

C3.2.11—HIV transmission

C3.2.12—HIV infection and AIDS

C3.2.13—Antibiotics

C3.2.14—Antibiotic resistance evolution

C3.2.15—Zoonoses

C3.2.16—Vaccines and immunization

C3.2.17—Herd immunity

C3.2.18—COVID-19 pandemic data evaluation

C4.1 Populations and communities

C4.2 Transfers of energy and matter

D Continuity and Change

IB/Biology/SL//Question Bank/C Interaction and Interdependence/C3.2 Defence against disease/C3.2.17—Herd immunity

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