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IMF-095-01-0001-en	What distinguishes the term microbiota from the term microbiome?	Microbiota refers to the organisms themselves, while microbiome can also include their collective genes, products and functional environment across body sites.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0002-en	Why can an organism that is harmless in its usual niche still cause disease?	Because disease follows a change of context: barrier breach, altered immunity, or movement into a normally sterile compartment, not a change in the organism itself.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0003-en	Why does the stomach carry low microbial biomass while the colon carries an enormous community?	Gastric acidity suppresses growth, whereas the colon offers slow transit and undigested substrates that support a huge anaerobic community.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0004-en	How does a microbial community construct part of its own habitat?	Microbes consume oxygen, change pH, degrade mucus, release metabolites and build biofilms, which alters niche conditions and the opportunities available to later arrivals.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0005-en	Why is colonisation described as a succession rather than a single event at birth?	Delivery mode, feeding, antibiotics, contacts, geography, diet and host genetics keep shaping unstable early communities, which develop toward site-specific states over years.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0006-en	Why do claims of a substantial healthy placental microbiome remain controversial?	Low-biomass samples are highly vulnerable to reagent and environmental contamination, and detecting microbial DNA does not prove that living organisms colonised the site.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0007-en	In community assembly, what distinguishes ecological selection from drift?	Selection favours traits that fit the niche, whereas drift changes low-abundance populations randomly without reference to their traits.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0008-en	What is a priority effect, and why does it matter for community outcome?	Early colonisers alter the conditions later organisms meet, so the order of arrival, not only which organisms arrive, shapes the community that establishes.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0009-en	Two people host taxonomically different gut communities. Why need this not imply different function?	Different taxa can perform overlapping functions, so community membership and community output are not the same measurement.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0010-en	Why is higher diversity not universally a marker of health?	Vaginal health often involves low-diversity Lactobacillus-dominant states, while diverse oral plaque can include disease-associated communities; metric and sequencing depth also alter conclusions.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0011-en	How can inflammation arise in the gut without any new pathogen appearing?	Mucus, secretory IgA, antimicrobial peptides and epithelial oxygen consumption normally separate the luminal community from epithelium, and loss of that spatial separation alone can drive inflammation.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0012-en	Why can a course of antibiotics allow Clostridioides difficile to expand?	Antibiotics remove resident competitors, weakening colonisation resistance built on nutrient competition, attachment-site occupancy, bacteriocins, acidic metabolites and bile-acid transformation.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0013-en	Why is pathogenicity described as an interaction rather than a fixed property of a species?	Staphylococcus aureus can colonise the nose without symptoms yet cause abscess or bloodstream infection, so outcome depends on host state and location, not on the organism alone.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0014-en	What distinguishes a pathobiont from an opportunistic infection?	A pathobiont is a resident organism that contributes to disease when host or community conditions change, while opportunistic infection describes disease caused by low-virulence organisms because host defence is defective.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0015-en	Why does a positive culture from a nonsterile site not establish causation?	Such a result may reflect carriage of a resident organism rather than the cause of the current illness, so interpretation needs the clinical picture.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0016-en	How does frequent fermentable carbohydrate intake drive enamel demineralisation?	It selects acid-producing and acid-tolerant communities within plaque, and their local acid production demineralises enamel.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0017-en	Why is periodontal disease not explained by one necessary organism?	It arises from a dysbiotic subgingival biofilm interacting with inflammatory tissue destruction, so the process is a community and host interaction.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0018-en	How do the components of atopic dermatitis reinforce one another?	Barrier defects, type-two immune inflammation and episodic Staphylococcus expansion each worsen the others, so the disorder is self-reinforcing rather than driven by one factor.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0019-en	How does bacterial vaginosis differ from a conventional single-agent infection?	It involves a polymicrobial biofilm and altered metabolites rather than one causative organism, and community states vary by individual and ancestry.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0020-en	Why can the same gut organism be beneficial in one person and harmful in another?	Microbial function depends on substrate and strain, so an organism beneficial on fibre can produce harmful metabolites under a different diet.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0021-en	Why must germ-free animal findings on immune development be extrapolated to humans cautiously?	Germ-free animals show altered lymphoid tissue, IgA, T-cell subsets, barrier maturation and metabolism, but these are model-specific results rather than demonstrated human mechanisms.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0022-en	How does antibiotic tolerance in a biofilm differ from inherited resistance?	Tolerance comes from physiological state such as slow growth and altered gene expression within the matrix, while resistance is heritable; biofilms nonetheless favour both persistence and evolution.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0023-en	How can drug and microbiome effects run in both directions at once?	Drugs such as proton-pump inhibitors and metformin reshape the microbiota, while microbes activate or inactivate drugs, as in digoxin reduction, so observational links can be confounded.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending
IMF-095-01-0024-en	What distinguishes resilience from resistance in a microbial community, and why does one post-treatment sample not prove recovery?	Resilience is return toward function after disturbance and resistance is limited change during it; baseline variability is wide, so an individual's longitudinal range is more informative than a single later sample.	Integrated Medical Foundations; chapter 95, TTS module 1; https://theisegoria.github.io/medical-textbook/integrated-medical-foundations-expanded-english.md; module SHA256 at export: dec0ea0b0963b65f4b765498b18ecb67167115bb5110ecce5207c7f882ee4c1b; editorial review pending	imf lang::en chapter::095 module::095-01 review::pending