What is the average velocity displacement s (m)
From 0-5 seconds?
60
From 5-10 seconds?
45
From 10-15 seconds?
30
15
0
10
15
time (s)

-4 on

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 =

i think its d if wrong im sorry