Practice question

Venom is a chemical predatory weapon because toxins delivered by a bite, sting, fang, harpoon, or nematocyst disrupt prey physiology. Components may block ion channels, impair neuromuscular transmission, damage membranes, alter coagulation, or initiate rapid tissue injury. Immobilization reduces escape and shortens pursuit or handling time, while digestive enzymes may begin extraoral processing. Calling this “chemical warfare” is informal, but it correctly distinguishes chemical incapacitation from purely mechanical capture. Mimicry relies on resemblance or deceptive signaling, ambush describes waiting concealed before attack, and group hunting depends on coordination among predators. A venomous predator may also ambush or hunt cooperatively, so these categories are not mutually exclusive; the feature specified is toxin use. Venom differs from poison because venom is actively delivered through specialized structures, whereas poison harms when touched or ingested. Natural selection can produce coevolutionary escalation as prey evolve resistance and predators evolve altered toxin composition or delivery, linking the biochemical mechanism to predator–prey arms races.