← Trends in human evolution

2 How this connects to the other Level 3 Biology standards

Human evolution is a specific case study of the same evolutionary mechanisms 91605 examines generally — natural selection, genetic drift, and speciation all reappear here with hominin fossils as the evidence.

Shared ideas with 91605 (Evolution)

  • The serial founder effect explaining declining genetic diversity away from Africa is the same genetic-drift concept 91605 covers generally — applied here to human migration specifically.
  • A selection pressure (a cooler, drier Africa favouring bipedalism) driving anatomical change is the same natural-selection reasoning used throughout 91605, just with a specific named pressure and trait.
  • Reproductive isolation and hybridisation (small amounts of Neanderthal/Denisovan DNA in modern genomes) directly parallels 91605's treatment of species boundaries and interbreeding.
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Why this matters for revision order

The reasoning skill this standard shares most directly with 91605 is naming a SPECIFIC selection pressure and tracing it to a SPECIFIC trait, rather than a general "evolution happened" statement — practise that habit here and it transfers directly.

Practise just this