1.1 Chemical elements joined together to form compounds, 1.3 Cell membranes and transport, 3.2 Photosynthesis uses light energy to synthesise organic molecules...
Mutations and variation, Control of gene expression (Prokaryotic transcriptional control), Control of gene expression (Eukaryotic transcriptional control)...
1.1 weather and climate, 1.2 variations in air temperature across the earths surface, 1.3 (water cycle) variation in precipitation across earth’s surface...