The statement that accurately compares the motor systems of the somatic nervous system (SNS) and autonomic nervous system (ANS) is:
"The somatic nervous system (SNS) controls voluntary motor functions, while the autonomic nervous system (ANS) controls involuntary motor functions."
This statement highlights the key difference between the two systems. The SNS governs conscious, voluntary muscle movements, such as those needed for walking or picking up objects, whereas the ANS regulates automatic, involuntary processes, like heart rate, digestion, and pupil dilation.