A student obtains the following daisy counts from five randomly placed 1 m2 quadrats.
Table
| Quadrat | Number of daisies |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 4 |
| 4 | 6 |
| 5 | 3 |
The field has an area of 150 m2.
What is the estimated number of daisies in the field?
120120120
600600600
750750750
300030003000
82 exam-style questions on Edexcel GCSE Biology 9.1 Ecosystems and interdependence, covering 9.1.1 Levels of organisation in ecosystems, 9.1.2 Abiotic and biotic factors, 9.1.3 Importance of interdependence, 9.1.4 Parasitism and mutualism, and 9.1.5 Determining number of organisms in an area. Each one has a worked solution and a mark scheme showing where the marks go.