I think the answer's secondary succession
Coordinates action and responses by sending signals from one part of the body to another.
I think its a transcription (srry if im wrong)
<span> a characteristic of acids is that they react with metals to release hydrogen gas.</span>
Reaching ...............via the SOMATIC nervous system.
The somatic nervous system is the part of the peripheral nervous system which is associated with associated with voluntary control of body parts.
The major functions of the somatic nervous system is voluntary movement of muscles and organs.