Humans, animals, plants and micro organisms. We all live in harmony. How do you explain this?

First of all I'm an atheist. God is just a creation of the human race to explain a few things that we couldn't explain otherwise. Now with the progress of science and technology we can search the truth as we never did before.

As for real life and daily life. God will not help us. It's not like we pray and the *poof* it happened. If something went good is because of you. You made it go good. W make our lifes good. God doesn't play a role in this and never will he.