5 Diagrams A, C and D show the main energy changes. However, there should be a second energy output for complete accuracy. What is this output? Explain your answer. (You may like to turn to page 221 to help you answer. (physics)​

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 =