The term "meta-host" refers to:
Only the human genome
None of the above
A single cell
Human plus microbiome as a functional unit
The Correct Answer is D
A. Only the human genome: The term “meta-host” extends beyond the human genome alone.
B. None of the above: Inaccurate because another option defines the term.
C. A single cell: A meta-host refers to a multicellular host plus its microbiome, not a single cell.
D. Human plus microbiome as a functional unit: “Meta-host” denotes the host organism together with its associated microbiome functioning as an integrated unit.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Only eukaryotes: The microbiome includes many prokaryotes and viruses as well as eukaryotic microbes, so it is not limited to eukaryotes.
B. Only prokaryotes: Prokaryotes (bacteria, archaea) are major components, but the microbiome also contains viruses and fungi.
C. Bacteria, archaea, viruses, and fungi: The human microbiome is composed of diverse microorganisms including bacteria, archaea, viruses, and fungal species.
D. Only bacteria: Bacteria are abundant, but this option omits other microbial groups present in the microbiome.
Correct Answer is A
Explanation
A. Blood: Blood is normally sterile in healthy individuals; presence of microbes (bacteremia) indicates infection.
B. Skin: The skin is heavily colonized by a diverse microbiome on its surface.
C. Mouth: The oral cavity hosts a rich microbial community in health.
D. Gut: The gastrointestinal tract contains a dense and diverse microbiome.
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