Answer:
neurotransmitter; receptor site
Like a key in a lock, the shape of the neurotransmitter must fit the receptor site to affect the postsynaptic neuron.
Answer:
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The repeated behaviour has been <u>reinforced. </u>
This is deduced from the learning mechanism known as operant conditioning, that consists on reinforcing certain behaviours through rewards or punishments respectively depending on whether the aim is to increase or decrease their frequency.
If there is a positive or rewarding stimulus after the correct behaviour it increases the likelihood of the behaviour repeating again.
The answer is A hope it helped
