IB Biology SL 4.1.18 Allelopathy and competition Question Bank
Practise IB Biology SL 4.1.18 by explaining how allelochemicals reduce competition between plants.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Describe how a plant chemical can inhibit the growth of neighbouring plants.
- Relate allelopathy to competition for resources.
C4.1.18—Allelopathy and antibiotics question 1
[Maximum number: 1]
The paradise tree (Ailanthus altissima) produces a chemical called ailanthone which inhibits the growth of other plants. What is this process?
A
Allelopathy
B
Endemism
C
Mutualism
D
Herbivory
A
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