Which statement best describes the microbiome composition?

Which statement best describes the microbiome composition?

• A. It consists solely of bacteria.
• B. It is made up of bacteria, fungi, and viruses.
• C. It includes only bacteria and viruses.
• D. It is not involved in digestion.

Answer: (B)

The microbiome is a diverse community of microorganisms living in and on the body, not limited to just bacteria. It includes bacteria, fungi, and viruses, among others, and these different organisms interact to shape the ecosystem and influence digestion, metabolism, and immune function. That’s why describing the microbiome as being made up of bacteria, fungi, and viruses is the best fit—it recognizes the real diversity present. Saying it’s solely bacteria ignores other members; claiming only bacteria and viruses excludes fungi; and stating it isn’t involved in digestion contradicts the microbiome’s well-established roles in breaking down foods, producing vitamins, and affecting nutrient absorption.

The microbiome is a diverse community of microorganisms living in and on the body, not limited to just bacteria. It includes bacteria, fungi, and viruses, among others, and these different organisms interact to shape the ecosystem and influence digestion, metabolism, and immune function. That’s why describing the microbiome as being made up of bacteria, fungi, and viruses is the best fit—it recognizes the real diversity present. Saying it’s solely bacteria ignores other members; claiming only bacteria and viruses excludes fungi; and stating it isn’t involved in digestion contradicts the microbiome’s well-established roles in breaking down foods, producing vitamins, and affecting nutrient absorption.