Question

parts of the human nervous system in order from least complex to most complex?

Answer 1

Answer:

brain

neurons, and is the largest most complex part of your nervous system. Your brain helps you receive and process messages- to think, remember, and reason- and coordinates muscular movement. Your brain is involved in your emotions and everything you sense.

Answer 2

Answer:The answer is (2) nucleus - nerve cell - brain - nervous system.

A nucleus is an organelle present in most of the body cells (red blood cells are an exception). The nucleus is present in nerve cells, as well. Nerve cells, besides nucleus, consist of many other organelles characteristic for animal cells. Billions of nerve cells work together and form a brain. The brain is an organ which is the part of the nervous system. The nervous system includes not only the brain but also a spinal cord and cranial and spinal nerves as well.

Explanation: