The table gives estimated braincase volumes for three fossil populations.
Table
| Population | Age / million years | Mean braincase volume / cm3\text{cm}^3cm3 |
|---|---|---|
| P | 2.4 | 500 |
| Q | 1.8 | 650 |
| R | 1.2 | 800 |
Which statement correctly describes the change from P to R?
the mean increased by 60%, while fossil age increased by 1.2 million years
the mean increased by 37.5%, while fossil age increased by 1.2 million years
the mean increased by 60%, while fossil age decreased by 1.2 million years
the mean increased by 37.5%, while fossil age decreased by 1.2 million years
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.