A whale flipper and a human arm contain corresponding bones arranged in a similar pattern.
Which explanation accounts for this similarity?
the bone pattern developed through living in the same habitat
the bone pattern was acquired through using the same muscles
the bone pattern was inherited from a common ancestor
the bone pattern developed through performing the same movement
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.