The student's essay establishes a clear connection between the study and the subject's theoretical body of knowledge, explaining the definitions of invasive plants and their impact. The source material is mostly from accredited and scientific sources, and the essay maintains a consistent and academic style of writing. Additionally, the student uses subject-specific terms correctly and provides clear explanations, demonstrating their knowledge and understanding of the topic. However, the essay includes irrelevant information and fails to establish the context of the research question in the area of environmental systems and society, which should have been replaced with relevant details about invasive and local plants.