33 points
The number of cells in three separate Petri Dishes was recorded over a
period of 20 days. The data shown in the table best illustrates which part
of the cell theory?
Petri Dish
Day 1
Day 10
Day 20
0
50
150
O
All living things are made up of cells,
O
Cells are the basic unit of living things,
O
Organisms can be single celled or many celled,
O
All cells come from preexisting cells.

not too sure thinking all accelerations are pointed down

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 =