IB Biology HL A3.1.1 Variation as defining feature of life
IB Biology HL A3.1.1 Variation as defining feature of life

IB Biology syllabusFirst assessment 2025
Practise recognising variation in organisms from images, measurements and population data, with reasons based on the pattern shown.
How this is tested
- distinguish continuous variation from grouped categories using measurement evidence
- state supported causes of variation in plants, including mutation and sexual reproduction
- interpret population data to decide which group shows the greatest variation
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