Answer:
Neurotransmitters
Explanation:
Neurotransmitters are the chemicals present in the body used for the propagation of action potential. These neurotransmitters are also known as the body chemical messengers.
Neurotransmitters are stored in the neural cells. These chemicals are generally released when the cell is stimulated by the specific signal. The effect of neurotransmitter may be excitatory or inhibitory.
Thus, the answer is option (4).
I think the answer is D) Precipitation. Hope this helps!! Please mark me Brainiliest!!
A debate is where you talk with your peers about ideas and you sometimes argue about what is right or what should be done. but its nothing to be worried about. you can let the others argue, but you can listen and then talk. thats the best thing to do, to listen, then speak.
good luck!
Answer:
Nose, Trachea, Bronchi, Lungs (for inhalation)
Explanation:
Just reverse the answer for order of exhalation
