A scientist used the same method to survey two equal-sized sections of a disused railway line.
The table shows the number of individuals of each species recorded.
| Species recorded | Section P | Section Q |
|---|---|---|
| Moss A | 18 | 20 |
| Moss B | 12 | 0 |
| Grass A | 15 | 20 |
| Flowering plant A | 10 | 0 |
| Beetle A | 9 | 20 |
| Woodlouse A | 8 | 20 |
| Fungus A | 8 | 0 |
Explain which section has the greater biodiversity and why this section is more likely to remain stable if one species declines.
84 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.