IB Biology SL B4.2.2 Oxygen Tolerance Questions
Explore oxygen tolerance through seaweed, an obligate aerobe whose survival depends on oxygen availability, in IB Biology SL B4.2.2.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Identify oxygen as a required survival condition for seaweed described as an obligate aerobe.
IB Biology SL B4.2.2 Oxygen Tolerance Questions question 1
A student set up a 20 -metre transect line along a rocky shore and measured the abundance of seven species of seaweeds (A-G) at 21 different sampling stations at fixed distances. The kite diagram represents the species abundance data across the 20 metres.
Seaweeds are obligate aerobes. Describe an environmental condition required for seaweed survival.
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