A museum database contains classification records for four organisms, A, B, C and D.
For each pair, an audit starts at kingdom and moves towards species. The audit records the first rank at which the two organisms are placed in different groups.
| Pair of organisms | First rank at which the records differ |
|---|---|
| A and B | family |
| B and C | genus |
| C and D | class |
What would the audit record for the pair A and C, and for the pair B and D?
A and C first differ at family; B and D first differ at order.
A and C first differ at genus; B and D first differ at order.
A and C first differ at family; B and D first differ at class.
A and C first differ at genus; B and D first differ at class.
81 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.