Use molecular evidence for relatedness
A molecular comparison in a Wellington plant productivity lab shows two species differ by 3 DNA bases, while each differs from a third species by 31 bases. Interpret the evolutionary relationship. Enter the answer and choose the interpretation that best matches the HL Biology 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.