The Linnaean system of classification was developed in the 18th century. Since then, scientists have changed the way in which living organisms are classified.
Give one feature of organisms that Linnaeus used to place them into groups.
Explain how improvements in the microscope have changed the classification of living organisms.
Scientists can now compare the base sequence of the DNA of different organisms. Explain why this gives better evidence of how closely two organisms are related than comparing what they look like.
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.