Answer:
somatic and autonomous nervous system
Explanation:
the peripheral nervous system is divided into two parts.somatic and autonomous nervous system,each of these components play a critical role in how the peripheral nervous system operates.
Decomposer, they eat dead organic material
Motor neuron disease includes loss of motor neurons in the anterior horns of the spinal cord and motor nuclei of the lower brain stem.
I'm not sure, but I think it would be mud.