Reflex Arc Pathway Sequence

Steps:

• Identify the flow chart as a reflex arc, starting with stimulus detection.
• Label E as Receptor, which detects the stimulus.
• Follow with F as Sensory neuron, transmitting signals to the CNS.
• Continue to G as Relay neuron in the CNS for processing.
• End with H as Motor neuron to I as Effector for response.

Why C is correct:

• It follows the biological definition of a reflex arc: receptor detects stimulus, sensory neuron relays to CNS via relay neuron, motor neuron activates effector.

Why the others are wrong:

• A misplaces effector first and includes brain instead of relay, disrupting sequence.
• B swaps sensory and relay while ending with effector incorrectly as I.
• D starts correctly but jumbles motor, sensory, and adds brain erroneously.

Final answer: C