Villi have walls one cell thick so that

  1. they make enzymes
  2. they can contract
  3. nutrients have a short distance to diffuse
  4. they store fat
Answer

C) nutrients have a short distance to diffuse

Thin walls mean short diffusion distances. O Level Biology · Topic 8 Human Nutrition · 8.3 Absorption and assimilation

Biology MCQ · More O Level Biology: Human Nutrition MCQs · Practise