Answer:
evolution
Explanation:
For example, scientists believe that monkeys have evolved to become humans.
This clearly has happened over many millions of years.
Monkeys look really different from humans (don't you think!?).
This was just a random example that came to my head.
Hope this helps.
-Gumina
The parts of the nervous system are:<span> the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body.</span>
