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Pearson Edexcel IAL Biology 4.14 Classification & taxonomy

Practise classifying organisms using domains, species definitions, phenotype evidence and molecular comparisons between taxa.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • use the three-domain system to place prokaryotic and eukaryotic organisms correctly
  • apply the species concept using fertile offspring, subspecies variation or isolation evidence
  • interpret molecular or phenotypic comparisons to decide which organisms are more closely related

4.14—Classification and taxonomy question 1

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The common wombat is endemic to Australia and Tasmania.
The photograph shows a common wombat.

Figure for Question 4.14—Classification and taxonomy question 1 — Edexcel A-Level Biology AS

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Common wombats mark areas of their habitat to signal to other wombats of the same species that they are living there. These marked areas are called territories.

Common wombats produce cube-shaped faeces. It is thought that these cubes can be stacked to mark territory without rolling away.

State what is meant by the term species.

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