Biology 9700 · AS & A Level · The circulatory system

The circulatory system — practice question

What is found in the inner layer of veins and capillaries?

  • Acollagen fibres
  • Belastic fibres
  • Cendothelium
  • Dsmooth muscle

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI