IB Biology HL 4.1.18 Allelopathy and competition Question Bank
Practise IB Biology HL 4.1.18 by explaining how named plants use allelopathy to suppress competitors.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Explain how allelochemicals reduce competition in a named plant example.
- Evaluate the ecological effect of chemical inhibition on neighbouring species.
C4.1.18—Allelopathy and antibiotics question 1
The image shows mycorrhizal fungi growing between the cells of a recently germinated orchid plant.
Explain how a named plant can reduce competition by allelopathy.
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