A vertical farm grows strawberry plants using hydroponics. A root disease caused by a pathogen is found on two of the plants. The number of plants showing the disease is then recorded.
| Time after the disease was found (days) | Plants showing disease |
|---|---|
| 0 | 2 |
| 3 | 16 |
| 6 | 48 |
Describe the pattern in the results and explain how the growing system could cause it.
127 exam-style questions on OCR GCSE Biology 6.2 Feeding the human race, covering 6.2.1 Biological factors affecting food security, 6.2.2 Agricultural solutions to growing demand, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, 6.2.5 Steps in genetic engineering, 6.2.6 Benefits and risks of gene technology in agriculture, and 6.2.7 Biotechnological solutions to growing demand. Each one has a worked solution and a mark scheme showing where the marks go.