Constants. That the experiments are all writer 10. Frequent examinations and scientific argumentation can change and strengthen
scientific knowledge. What example was used in the Teded video that mentioned the
speed of light? Explain, briefly, what the researcher did to calculate the speed of light.

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 =