Use a dichotomous key branch
A specimen in a Melbourne DP Biology class has jointed legs and an external skeleton. A dichotomous key sends organisms with those features to the result. Identify the group. Use the diagram labels, allele model, food-web arrows, or data values before answering. 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.