3. How does chemical evolution explain the origin of life on Earth?

A third theory of life's origin is known as chemical evolution. In this idea, pre-biological changes slowly transform simple atoms and molecules into the more complex chemicals needed to produce life. ... This modern theory then suggests that life originated on Earth by means of a rather slow evolution of nonliving matter.

Explanation:

got on google I will retype in my own word if u like.

Hope tthis helps! :)

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.