IB Biology SL 3.4.5 Coral Reef Limiting Factors Question Bank
Practise IB Biology SL 3.4.5 by identifying abiotic factors that limit zooxanthellae and coral reef formation.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Identify light, temperature, salinity, pH or carbon dioxide as coral-reef limiting factors.
B4.1.5—Coral reef formation conditions question 1
Reef-building corals are an association between two organisms: coral polyps and Zooxanthellae.
State one limiting factor on Zooxanthellae which affects coral reef formation.
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