Biology 9700 · AS & A Level · Control and coordination in mammals

Control and coordination in mammals — practice question

(a)[9]

Describe how a spinal reflex arc works and explain why it benefits a mammal.

(b)[6]

Explain the importance of the myelin sheath in affecting the speed of nerve impulses.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: “a sense receptor detects the stimulus” …