The arrow in a chemical equation means which of the following?
a. conserves
b. forms
c. yields
d. both b. and c.

what question you dont ask a question

explanation:

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

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 =