Some rats have become resistant to common pesticides. which statement best explains how the rats became able to resist those pesticides

We have been using pesticides for a very time now a rat likes to be alive living out in the streets like a thug so the body sends message to body help fight the pesticides. So now white blood cells are fighting battle against them. They begin evolving and become immune to the pesticides. 

U. life is what you go through to become a better person. it makes you stronger, wiser, and more creative. it can be hard but its ok. because i believe everyone was put here for a reason. whether or not you know that reason you should always look towards the future and trust in god for a better tomorrow.be safe and blessed

The direction a chemical reaction occurs is represented by an arrow