There are _____ microbial cells living on and in our bodies compared to the number of our body cells.
A) ten times more
B) ten times less
C) about the same number of
D) about half as many
E) 100 times more

Question

There are _____ microbial cells living on and in our bodies compared to the number of our body cells.
A) ten times more
B) ten times less
C) about the same number of
D) about half as many 
E) 100 times more

Quizplus · Accepted Answer

The correct answer is A, ten times more. The human body is estimated to have around 30 trillion cells, while the number of microbial cells living on and in our bodies is estimated to range from 30 to 300 trillion, meaning that there are at least 10 times more microbes than human cells in our bodies.

There Are _____ Microbial Cells Living on and in Our