A - Unity and Diversity
B - Form and Function
C - Interaction and Interdependence
D - Continuity and Change
D1.1 DNA replication
D1.2 Protein synthesis
D1.3 Mutations and gene editing
D2.1 Cell and nuclear division
D2.2 Gene expression (HL)
D2.3 Water potential
D3.1 Reproduction
D3.2 Inheritance
D3.3 Homeostasis
D4.1 Natural selection
D4.2 Sustainability and change
D4.3 Climate change
View a summary cheatsheet for D4.3 Climate change
D4.3.1 Anthropogenic causes of climate change
D4.3.2 Positive feedback cycles in global warming
D4.3.3 Change from net carbon accumulation to net loss in boreal forests
D4.3.4 Melting of landfast ice and sea ice as examples of polar habitat change
D4.3.5 Changes in ocean currents altering the timing and extent of nutrient upwelling
D4.3.6 Poleward and upslope range shifts of temperate species
D4.3.7 Threats to coral reefs as an example of potential ecosystem collapse
D4.3.8 Afforestation, forest regeneration and restoration of peat-forming wetlands
D4.3.9 Phenology as research into the timing of biological events (HL)
D4.3.10 Disruption to the synchrony of phenological events by climate change (HL)
D4.3.11 Increases to the number of insect life cycles within a year due to climate change (HL)
D4.3.12 Evolution as a consequence of climate change (HL)
