What this tests
Syllabus point 13.1 — Excretion in humans, in Excretion in humans. Difficulty easy (estimated from the question's demands, not a Cambridge rating).
Cambridge IGCSE Biology 0610 · 13.1 Excretion in humans
November 2018 · Paper 11 · Question 21
One real Cambridge question from Excretion in humans, with the official answer.