Answer:
olfactory, transduction
Step-by-step explanation:
While strolling through the garden, Jamal suddenly notices the beautiful odor of roses. He is using his olfactory sense, and the process by which the odor is converted into neural signals that his brain can understand is called transduction.
The sense for olfaction; the nose is used to perceive smell while transduction is the process by which senses or stimuli are converted to neural signals that the brain can understand.