<h2><u>Answer:</u></h2>
Neurotransmitter is the correct answer.
<h3><u>Explanation:</u></h3>
The neurotransmitter, additionally called chemical transmitter or compound flag-bearer, any of a gathering of synthetic operators discharged by neurons (nerve cells) to animate neighboring neurons or muscle or organ cells, in this manner enabling driving forces to be passed starting with one cell then onto the next all through the sensory system.
Simply Learn Khmer Phrasebook
They have helped the united states,africa,and asia just to name a few.
Explanation:
the child is sitting out a way of life I used Google translate
