2. Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
2. Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

(a) Stimulus: Receptor:: Impulse:_________
Solution:-

Stimulus: Receptor:: Impulse: Effectors

(b) Cerebrum: Diencephalon:: Cerebellum:_______
Solution:-

Cerebrum: Diencephalon:: Cerebellum: Medulla oblongata

(c) Receptor: Sensory nerve:: Motor nerve:_______

Solution:- Receptor: Sensory nerve:: Motor nerve: Effector