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6.4 Classification of living organisms

6.4 Classification of living organisms

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Question 1
F

Figure shows an evolutionary tree for five species of lizard, A, B, C, D and E. Species A and species B look very similar to each other.

Figure: Evolutionary tree for five species of lizard

image

a.

Which two species are the most closely related? Give a reason for your answer.

[2]
b.

How many millions of years ago did species C and species D last share a common ancestor?

[1]
c.

Species E is extinct. Give the type of evidence that scientists used to place species E on the evolutionary tree.

[1]
d.

Suggest one reason why this evolutionary tree may be changed in the future.

[1]
Markscheme

6.4 Classification of living organisms Questions

  1. GCSE
  2. /Biology
  3. /6.4 Classification of living organisms

40 exam-style questions on AQA GCSE Biology 6.4 Classification of living organisms, covering 6.4 Classification of living organisms. Each one has a worked solution and a mark scheme showing where the marks go.

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