{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.fission","code":"thing-q929080","url":"https://ver.cy/models/thing/q929080/","name":"fission","alternateNames":[],"kind":"thing","status":"research-draft","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"","entryKind":"","plane":"","domain":["ACT.PRC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"In biology, a form of asexual reproduction in which a single-celled or simple organism divides into two or more daughter organisms, including binary fission in bacteria, archaea and many protists, multiple fission or schizogony, in which the nucleus divides several times before the cell divides, as in the malaria parasite Plasmodium, and in multicellular organisms fragmentation, where a body breaks into pieces that regenerate, as in flatworms, sea stars and thallus fragmentation in algae, lichens and liverworts. Bacterial binary fission can double populations rapidly under good conditions, which is why food should be refrigerated.","purpose":"Let an agent explain biological fission, relay types, mechanisms, examples and implications for growth from microbiology and biology sources, describe the named forms, and distinguish biological fission from nuclear fission, mitosis in multicellular organisms, budding and sexual reproduction.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Asexual","Division of whole organism","Rapid population growth","Several forms"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What biological fission is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is fission in biology, and how does it differ from nuclear fission, mitosis, budding and sexual reproduction?","kind":"definition"},{"text":"Is the question about bacteria, parasites, plants and algae or animals?","kind":"boundary"}]}]},{"id":"forms","name":"Forms","description":"Named forms.","findings":[{"id":"forms-finding","name":"Forms","description":"Forms.","questions":[{"text":"What are fragmentation, thallus fragmentation and multiple fission?","kind":"definition"},{"text":"Which entry fits the specific form?","kind":"action"}]}]}]},{"id":"microbiology","name":"Microbiology","description":"Bacteria.","layers":[{"id":"binary","name":"Binary fission","description":"Binary fission.","findings":[{"id":"binary-finding","name":"Binary fission","description":"Binary fission.","questions":[{"text":"How do bacteria replicate DNA and divide with the FtsZ ring?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"growth","name":"Growth","description":"Exponential growth.","findings":[{"id":"growth-finding","name":"Growth","description":"Growth.","questions":[{"text":"How does doubling time lead to exponential growth, and why does it matter for food safety?","kind":"measurement"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"organisms","name":"Organisms","description":"Other organisms.","layers":[{"id":"plasmodium","name":"Plasmodium","description":"Schizogony.","findings":[{"id":"plasmodium-finding","name":"Plasmodium","description":"Plasmodium.","questions":[{"text":"How does multiple fission drive malaria parasite multiplication?","kind":"provenance"},{"text":"Which entry fits Plasmodium?","kind":"action"}]}]},{"id":"regeneration","name":"Regeneration","description":"Fragmentation and regeneration.","findings":[{"id":"regeneration-finding","name":"Regeneration","description":"Regeneration.","questions":[{"text":"How do flatworms and sea stars reproduce by fragmentation?","kind":"provenance"},{"text":"Which entry fits planarian?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Evolution.","layers":[{"id":"evolution","name":"Evolution","description":"Evolutionary role.","findings":[{"id":"evolution-finding","name":"Evolution","description":"Evolution.","questions":[{"text":"What are the evolutionary advantages and limits of asexual fission?","kind":"provenance"},{"text":"Which entry fits asexual reproduction?","kind":"action"}]}]},{"id":"lichens","name":"Lichens","description":"Thallus fragmentation.","findings":[{"id":"lichens-finding","name":"Lichens","description":"Lichens.","questions":[{"text":"How do lichens and liverworts spread by thallus fragments?","kind":"provenance"},{"text":"Which entry fits lichen?","kind":"action"}]}]}]}]},"agentConduct":{"may":["explain types and mechanisms","relay examples","describe named forms","distinguish related processes"],"mustNot":[],"requiresHuman":[]},"ethics":{"considerations":[],"affectedParties":[]},"owners":{"steward":"","roles":[],"masterSystems":[]},"relations":[{"target":"asexual reproduction","type":"related","note":"related"},{"target":"binary fission","type":"related"},{"target":"schizogony","type":"related"},{"target":"nuclear fission","type":"related"}],"interaction":{"identity":{"applicability":"required","items":[]},"properties":{"applicability":"not-applicable","items":["E. coli doubling time: about 20 minutes - ideal laboratory conditions","key bacterial protein: FtsZ note - division ring","registry parents: single-organism process, separation note"]},"recognition":{"applicability":"optional","items":["Asexual division into daughter organisms","Fragmentation, thallus fragmentation, multiple fission, binary fission","Nuclear fission splits atoms; mitosis divides cells within a body; budding grows an offspring outgrowth; sexual reproduction combines gametes","Cells or organisms pinching into two or more parts under the microscope."]},"capabilities":{"applicability":"required","items":["explain types and mechanisms","relay examples","describe named forms","distinguish related processes"]},"hazards":{"applicability":"required","items":["Confusing biological and nuclear fission","Underestimating bacterial growth in food","Oversimplifying protist division"]},"interfaces":{"applicability":"required","items":["No regulation; food safety guidance relies on bacterial growth knowledge"]},"context":{"applicability":"required","items":["Asexual reproduction by division.","binary fission","multiple fission","fragmentation","thallus fragmentation","transverse and longitudinal fission"]}},"sources":[],"openQuestions":["Should fragmentation be a separate entry?","Should binary fission be split off?","How should microbiology references be linked?","Which entry fits the specific form?","Which entry fits Plasmodium?","Which entry fits planarian?"],"resources":{"spec":"/models/things/publications/thing-q929080/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q929080/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T23:30:27Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"derived","ethics":"missing","owners":"missing","relations":"filled","interaction.identity":"missing","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"missing"},"notes":{"agentConduct":"Affordances listed as what may be done; prohibitions collected from the text.","interaction.properties":"Plane ACT: no invented physical properties.","sources":"Written from model knowledge without web access; claims are unverified."},"score":0.719}}