Based on the article “Will the real atomic model please stand up?,” why did J. J. Thomson experiment with cathode ray tubes tube, Thomson confirmed that

e) none of the above answers are correct

the answer for apex is the lowest

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 =