The Human Microbiome Is

Multiple Choice

The human microbiome is:

A) the collection of pathogenic microbes that attack humans and cause disease
B) the collection of symbiotic microbes living on or within the human body,often performing functions that humans do not possess
C) the collection of microbes that benefit human society,providing services such as bioremediation and assisting in food production
D) the collection of microbes that share the same environmental requirements as humans
E) the collection of microbes that are necessary for human survival,such as photoautotrophs and nitrogen fixing bacteria