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4.2 Evidence for evolution and classification

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Question 2

Scientists investigate a sediment sequence exposed beside a dry river valley.

Depth below the top of the sequenceObservation
2.0 mash layer A, radiometrically dated to 0.80 million years ago
2.6 mtool T, inside sediment filling an animal burrow that cuts through ash layer A
3.1 mash layer B, radiometrically dated to 1.20 million years ago

Evaluate the conclusion that tool T was made between 0.80 and 1.20 million years ago.

[3]
Markscheme

4.2 Evidence for evolution and classification Questions

  1. GCSE
  2. /Biology
  3. /4.2 Evidence for evolution and classification

45 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.

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