UPSC CDS 1 2023 GK Paper

Question : 79 of 120

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Reflex arcs are evolved in animals for quick and efficient responses. Which one of the following sequences correctly represents a reflex arc?

Receptor - Sensory neuron - Relay neuron in spinal cord - Brain - Motor neuron - Effector
Receptor - Sensory neuron - Brain - Relay neuron in spinal cord - Motor neuron - Effector
Receptor - Motor neuron - Relay neuron in spinal cord - Sensory neuron - Effector
Receptor - Motor neuron - Brain - Sensory neuron - Effector

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