Reflex arcs are evolved in animals for quick and efficient responses. Which one of the following sequences <strong>CORRECTLY</strong> represents a reflex arc?
- A. Receptor-Sensory neuron-Relay neuron in spinal cord-Brain-Motor neuron-Effector ✓
- B. Receptor-Sensory neuron-Brain-Relay neuron in spinal cord-Motor neuron-Effector
- C. Receptor-Motor neuron-Relay neuron in spinal cord-Sensory neuron-Effector
- D. Receptor-Motor neuron-Brain-Sensory neuron-Effector
Correct Answer: A. Receptor-Sensory neuron-Relay neuron in spinal cord-Brain-Motor neuron-Effector
Explanation
As per the UPSC answer key, the correct sequence for this specific question's options is given as Receptor to Sensory neuron to Relay neuron (spinal cord) to Brain to Motor neuron to Effector.
Related questions on Biology
- Which one among the following is the <strong>CORRECT</strong> scheme followed for classification of animals?
- Which one of the following is an example of airborne disease?
- What are the four human blood types in ABO blood group typing?
- Which one of the following is <strong>NOT</strong> a part of the male reproductive system in human beings?
- Which of the following are the different parts of a human brain?