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4.2 Evidence for evolution and classification

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Question 16
F

Two mammal forelimbs have the same basic bone arrangement. One is used for running and the other for swimming. Their bones differ in length and shape.

Which explanation accounts for both the similarities and the differences?

[1]
A

separate ancestry explains the arrangement; different functions explain the proportions

B

common ancestry explains the arrangement; different functions explain the proportions

C

common ancestry explains the proportions; identical functions explain the arrangement

D

separate ancestry explains the proportions; identical functions explain the arrangement

Markscheme

4.2 Evidence for evolution and classification Questions

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

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.

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