Answer:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Arthropods. im not sure if that helps but, thats what they are called.
The mouse; because the fish might decompose much faster, because it would be in water
"Struggle for existence and survival of the fittest" is the principle of evolution among the choices given in the question that <span>are represented in this example. The correct option among all the options that are given in the question is the second option or option "B". I hope that the answer has helped you.</span>
