B3.3.9 (HL)—Reasons for locomotion Topic Practice
B3.3.9 (HL)—Reasons for locomotion Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Students practise linking specific locomotion behaviours—feeding, predator evasion, mating, migration—to survival and reproductive advantages in named animal examples.
How this is tested
- apply evolutionary reasoning to explain how blackbird foraging or hare escape behaviour increases individual
- compare locomotion functions across contexts: e.g., orangutan mate-finding versus whale migration in terms
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