The OLFACTORY AND THE GUSTATORY SYSTEMS have receptors which die out after sometimes because of direct exposure to the environment.
The olfactory system has to do with the perception of smell while the gustatory system has to do with taste stimuli. For these two basic sense organs, their perception rate is always highest when they are newly exposed to a stimuli, after continuous exposure to the stimuli their receptors die out.
Answer: Option A) inhibits
GABA is a neurotransmitter that inhibits postsynaptic activity
Explanation:
Gamma amino butyric acid, GABA, is an inhibitory neurotransmitter in that, once released to the synapse, it inhibits or check muscular contractions by suspending further activity of the adjacent motor neuron.
Thus, by this mechanism, GABA inhibits postsynaptic activity
