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Past papers/IB/IB Biology SL/2025/Paper 1B TZ1

IB Biology SL

November 2025 Paper 1B TZ1

25 marks
TZ1

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P1A TZ1 P1A TZ3 P2 TZ1 P2 TZ3

Paper 1B · other sessions

Previous · May 2025Paper 1B TZ1

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4 questions · 25 marks. Topics come from our question bank.

Q1Molecules and cells5 marks
Q2Populations, ecosystems and environmental change5 marks
Q3Molecules and cells7 marks
Q4Information, inheritance and evolution8 marks