IB Biology SL 4.1.3 Transects and quadrats Question Bank
Practise IB Biology SL 4.1.3 by collecting and interpreting field data on organism abundance and diversity.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Outline how a transect samples organisms across an environmental gradient.
- Explain how quadrats record abundance or diversity in a field study.
C4.1.3—Random quadrat sampling question 1
[Maximum number: 2]
A school football field has plantain plants (Plantago media) growing on it as well as grass. Each plantain plant has a short stem with a circle of wide leaves. Outline how the size of the plantain population could be estimated using a quadrat method.
the quadrat positions are determined randomly within (the area of) the field; the number of plantain plants in the quadrat is counted each time; the area of the quadrat and the field are measured; (both needed) apply a formula;
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