Answer:
The nervous system has two main parts:
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.
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I believe its A i hope that helps
Frogs and pigeons both lay eggs. They may both share this characteristic because eggs are an easy way to allow young to develop outside of the womb.
