The correct sequence for the perception of smell in mammals is

BIOLOGY

JAMB 1999

A. chemicals → olfactory nerve endings → brain
B. dissolved chemicals → nasal sensory cell → brain
C. chemicals → mucus membrane → sensory cells→ brain
D. dissolved chemicals → sensory cells → olfactory nerve → brain

Correct Answer: D. dissolved chemicals → sensory cells → olfactory nerve → brain

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