Otoconia is related to: (A) Hearing, (B) Balance, (C) Smell, (D) Taste
Answer is B. Otoconia are bio-crystals which couple mechanic forces to the sensory hair cells in the utricle and saccule, a process essential for us to sense linear acceleration and gravity for the purpose of maintaining bodily balance. In fish, structurally similar bio-crystals called otoliths mediate balance Ref : Internet sources.