Scientists classify four species of plant found on limestone cliffs. The initial classification is based on the plants' structures and characteristics.
| Species | Proposed scientific name |
|---|---|
| J | Altimusa alba |
| K | Altimusa minor |
| L | Rivomusa rubra |
| M | Rivomusa pallida |
Scientists then use chemical analysis to compare molecules from the plants. A higher percentage indicates greater similarity between the molecules.
| Species compared | Similarity between molecules (%) |
|---|---|
| J and K | 72 |
| L and M | 69 |
| J and L | 93 |
| K and M | 91 |
Explain why the evidence from chemical analysis suggests that the initial classification should be revised.
Species J remains in the genus Altimusa and species M remains in the genus Rivomusa.
Use the evidence from chemical analysis to give the revised scientific names of species K and species L.
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.