Which statement concerning the microbiome on the human body is false?
A) Most bacterial species are human pathogens.
B) Ten percent of cells in the human body are human cells; the rest are microbes (mostly bacteria).
C) An increased frequency of autoimmune diseases has been linked to the changing diversity and composition of our microbiomes.
D) Microbial communities affect the expression of our genes.
E) Human infants largely acquire their original microbiomes at (and shortly after) birth, and these early microbiomes are critical for lifelong health.

Question

Quizplus · Accepted Answer

Most bacterial species are not human pathogens, and the vast majority of microbes that inhabit our bodies are harmless or beneficial.

Answer: B, C, D, E
 These statements are all true. The microbiome is composed primarily of bacteria, and these microbes play important roles in human physiology, including immune function, metabolism, and gene expression. Changes in the composition or diversity of the microbiome have been linked to a variety of health conditions, including autoimmune diseases. The acquisition of an infant's microbiome is critical for lifelong health.

Which Statement Concerning the Microbiome on the Human Body Is