The student does not clearly state the independent and dependent variables in the research question, which makes it difficult to understand the relationship being investigated. Additionally, the method of analysis is not sufficiently described, as the student fails to specify how the height of Euphorbia amygdaloides will be measured. Although the student provides a solid theoretical background and effectively explains the sampling technique used, there is a lack of discussion regarding the rationale behind the number of trials conducted. However, the student successfully identifies and addresses controlled, safety, ethical, and environmental issues, and provides a detailed and clear methodology that allows for reproducibility of the investigation.