Okay girl's (and guys) I need your opinion on something. I have been cheated on so many times and I am getting tired of people walking all over me like a door mat. What do I do?

 Dont seek for attention in class. Just stay on your own path. If somebody wants to be friends with u,sure just be friends with them. Dont just go out with any girl bro,lots of girls arent even loyal these days too.

Take a break from dating. Really the only way you will find true love is through loyalty. To find loyal woman you must abstain. Right now enjoy your young life go travel and explore the country or world. Maybe then you may meet someone.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =