Ardi had a big toe that could move away from the other toes.
Which activity was this feature most useful for?
pushing forwards when running upright
absorbing impacts when walking upright
gripping branches when climbing trees
supporting weight when standing upright
40 exam-style questions on Edexcel GCSE Biology 4.2 Evidence for evolution and classification, covering 4.2.1 Fossil evidence for human evolution, 4.2.2 Stone tool evidence for human evolution, 4.2.3 Pentadactyl limb as evidence, and 4.2.4 Three domains classification. Each one has a worked solution and a mark scheme showing where the marks go.