Biology 9700 · AS & A Level · The heart

The heart — practice question

The graph illustrates how pressure changes over a cardiac cycle. Which row correctly identifies W, X, Y, and Z?

    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