Theme A: Unity and Diversity

This unit explores the core IB Biology theme that all life shares fundamental biochemical and cellular traits, while exhibiting incredible diversity acros…

📖Study Guide

In-depth bilingual notes with worked past paper examples.

✍️Practice Exam Coming Soon

Original questions for this topic: MCQ + FRQ + Application + drag/match.

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How this topic is distributed across past papers — data that shows what matters.

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