The voluntary nervous system or somatic nervous system the part of the PNS (peripheral nervous system) which is associated with the voluntary control of the body movements.
These movements are generally controlled by the skeletal muscles. It helps in various movements such as walking, bending, sitting, et cetera.
This nervous system consists of the efferent nerves and afferent nerves or we can say motor nerves that helps in controlling the movement of the body.
they both provide evidence for evolution homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor the structures are similar because they evolved to do the same. Not because they were inherited from a common ancestor
No you would not be using energy from the sunlight because you don't get energy to walk, run, etc. from the sun. The closest type of energy to walking a dog is kentic energy.