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WAEC Biology 2000 Question 27

Question 27

Nervous Coordination

The simplest form of nervous pathway which links receptors with effectors is known as the

  1. A.relay neuron
  2. B.reflex arc
  3. C.motor nerves
  4. D.sensory nerves
Show the answer and explanation

Answer: B (reflex arc)

Explanation

A reflex arc is the shortest pathway: receptor, sensory neurone, relay neurone, motor neurone, effector.