Which of the following is not part of your weekly fitness log requirement?
o
a. recording your heart rate before, during, and after each workout.
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b. describing how you felt before, during, and after each workout.
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c. outlining the goals you worked toward and / or achieved during
the week.
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d. creating a workout plan for the following week.
submit

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 =