A research centre records samples from newly discovered organisms in a database. The same code represents the same classification group.
| Sample | Binomial name | Family code | Order code |
|---|---|---|---|
| A | Luminia alba | F1 | O1 |
| B | Luminia rubra | F2 | O1 |
| C | Coralia minor | F2 | O2 |
Scientists have checked that all three binomial names are correct. Exactly one of the six family and order codes is incorrect.
Explain why the records for samples A and B show that one of their family codes must be incorrect.
Explain how the record for sample C allows the scientists to identify the incorrect code. Give the corrected code.
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.