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Scientific processes

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Question 102

An agricultural scientist is investigating the impact of different soil additives on the yield of heirloom tomato plants.

Forty-five cloned heirloom tomato saplings of identical age and health are prepared for the study. The 45 saplings must be randomly allocated to three treatment groups of 15:

  • Group 1 is treated with Mycorrhizal fungi-infused compost.
  • Group 2 is treated with Vermicompost.
  • Group 3 serves as a control group and receives standard sterilized potting soil only.

Explain one way in which the scientist could randomly allocate the 45 saplings to the three treatment groups.

[2]
Markscheme

Scientific processes Questions

  1. A Level
  2. /Psychology
  3. /Scientific processes

689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.

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