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6.4 Classification of living organisms

6.4 Classification of living organisms

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Question 30
H

Scientists propose the following evolutionary history for five living species:

  • An ancestral population separated into two lineages.
  • One lineage later divided into P and Q.
  • The other lineage divided into R and a further lineage, which later divided into S and T.

R now looks more similar to T than to S.

Which statement about common ancestry follows from this history?

[1]
A

R is closer to T than to S; P and Q are equally related to R.

B

R is equally related to S and T; P is closer to R than Q is.

C

R is equally related to S and T; P and Q are equally related to R.

D

R is closer to T than to S; P is closer to R than Q is.

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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