D4.1.15 (HL)—Artificial selection Topic Practice
D4.1.15 (HL)—Artificial selection Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Students practise analysing breeding records, resistance emergence, and trait frequency shifts to evaluate artificial selection outcomes.
How this is tested
- explain unintended resistance evolution in pests or pathogens using selective pressure from crop/livestock
- compare phenotypic distributions before and after artificial selection using data from domesticated species
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