2. Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
(a) Cones: Iodopsim:: Rods: ________.
(b) Sound: ear drum:: dynamic balance: __________.
Solution:-
(a) Cones: Iodopsim:: Rods: Rhodopsin
(b) Sound: Eardrum:: Dynamic balance: Semi-circular canals