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IB Biology IB Biology IB
IB Biology IB
A1.1 Water
10 definitionsA1.2 Nucleic acids
7 definitionsA2.1 Origins of cells (HL)
11 definitionsA2.2 Cell structure
39 definitionsA2.3 Viruses (HL)
8 definitionsA3.1 Diversity of organisms
16 definitionsA3.2 Classification and cladistics (HL)
10 definitionsA4.1 Evolution and speciation
21 definitionsA4.2 Conservation of biodiversity
5 definitionsB1.1 Carbohydrates and lipids
10 definitionsB1.2 Proteins
14 definitionsB2.1 Membranes and membrane transport
14 definitionsB2.2 Organelles and compartmentalization
4 definitionsB2.3 Cell specialization
13 definitionsB3.1 Gas exchange
8 definitionsB3.2 Transport
31 definitionsB3.3 Muscle and motility (HL)
10 definitionsB4.1 Adaptation to environment
9 definitionsB4.2 Ecological niches
22 definitionsC1.1 Enzymes and metabolism
29 definitionsC1.2 Cell respiration
14 definitionsC1.3 Photosynthesis
15 definitionsC2.1 Chemical signalling (HL)
23 definitionsC2.2 Neural signalling
20 definitionsC3.1 Integration of body systems
28 definitionsC3.2 Defense against disease
25 definitionsC4.1 Populations and communities
15 definitionsC4.2 Transfer of energy and matter
17 definitionsD1.1 DNA replication
10 definitionsD1.2 Protein synthesis
12 definitionsD1.3 Mutations and gene editing
6 definitionsD2.1 Cell and nuclear division
16 definitionsD2.2 Gene expression (HL)
19 definitionsD2.3 Water potential
13 definitionsD3.1 Reproduction
29 definitionsD3.2 Inheritance
22 definitionsD3.3 Homeostasis
12 definitionsD4.1 Natural selection
16 definitionsD4.2 Sustainability and change
20 definitionsD4.3 Climate change
18 definitions