Describe one biological process or mechanism that helps you explain stabilising, directional and disruptive selection..

A high-scoring response should include precise scientific terminology, a clear sequence of ideas, and explicit reference to Evolution may lead to speciation.

The deciding biological point is Explain stabilising, directional and disruptive selection.. In Genetics and ecosystems official content, that means using disruptive selection accurately and explaining the mechanism before the outcome. This variation checks whether the learner can turn the approved objective into a coherent exam response with clear biological reasoning. Distractors usually fail because they reverse the mechanism, use the wrong scale of organisation, or describe a related topic without answering the exact objective.