Explain alveolus adaptation
An alveolus diagram in a student IA planning session shows a thin moist wall, many capillaries, and a large folded surface. Explain how these features support gas exchange. Enter the answer and choose the interpretation that best matches the biological evidence.
Worked practice: biological evidence and answer
Use the labelled biological evidence first, then connect it to the final answer.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.