2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86366We compare chemotaxis, the migration of cells and higher animals in reaction to a chemical stimulus, and similar phenomena originating within gases from temperature differences. Then we explain two easy mathematical models for handling experimental data.11 pages, no figures, text in germanComputational PhysicsBiological PhysicsClassical PhysicsCell Behaviortext