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6 exam-style questions with model answers, plus 8 quick multi-choice questions — every question on the site for this standard, grouped by the 2 pages of notes they come from.
Write a full answer before you reveal the model one — that comparison is where the marks come from. Every block links back to the notes that teach it.
Define an adaptation, and give one structural, one behavioural and one physiological example.
Explain how the hairs on the underside of a leaf reduce water loss, and explain why this is more important for a plant on an exposed cliff than for one in a sheltered forest.
Discuss why every adaptation involves a compromise, using two contrasting examples, and explain what this means for an organism whose habitat changes.
Describe how a fish and a flowering plant each carry out gas exchange, identifying the feature that makes each surface effective.
Explain why an insect's system of air tubes limits the size its body can reach, and explain why this limitation does not apply to a fish.
Compare how a fish, an insect and a flowering plant each meet the demands of gas exchange, and evaluate the limitations of each solution.