KnowraBiological weaponLinked fromLinked fromThe 5 pages that link to Biological weapon, each with the reason it gives.All 5Broader topic 2Narrower topic 1Compared with 2Nuclear weaponCompared with: Its effects arise from biological agents, not nuclear energy release.Biological warfareBroader topic: The weapon delivers the pathogen or toxin used in biological warfare.WarheadBroader topic: Biological agents are a distinct, prohibited category of destructive payload.RicinNarrower topic: Ricin is a toxin with a history of concern in biological and toxin warfare.History of weaponsCompared with: Biological agents spread harm through living systems rather than direct impact.