3.1 Biodiversity and evolutionIB Environmental Systems and Societies HL: Mind map
Levels, resilience
Natural selection
Simpson's index
Biodiversity and evolution
SL core plus HL extension
genesspecieshabitatsHL
HL: genes, isolation
HL: hotspots, humans
Exam tips
Written by the Exaim team, led by Shaun Daswani (Head of Upper Secondary, Improve ME Institute; MSc Financial Mathematics, Imperial College London; BSc, UCL) and Jason Daswani (operational lead, Improve ME Institute; LSE).