A survey of rocks in an old mountain range finds fewer fossils than scientists expected. Which statement explains this finding?
Rapid burial by sediment allowed scavengers to destroy most of the remains.
Organisms with hard parts, such as shells, decayed too quickly to form fossils.
Minerals replacing the remains caused most of the fossils to break apart.
Geological movement, heat and pressure may have damaged or destroyed fossils in the rock.
122 exam-style questions on OCR GCSE Biology 5.2 Natural selection and evolution, covering 5.2.1 Genetic variation within a population, 5.2.2 Developments in classification systems, 5.2.3 How evolution occurs through natural selection, 5.2.4 Evolution as change over time, 5.2.5 Evidence for evolution, and 5.2.6 Darwin and Wallace. Each one has a worked solution and a mark scheme showing where the marks go.