Nanoparticles can be targeted passively or actively. Immunity can be acquired either actively or passively. Atmosphere within the package can be modified passively or actively. Harmonisation can be achieved in two ways, actively or passively. Dendrites were once thought to merely convey electrical stimulation passively. He was the one to order Wraith to discreetly observe and passively protect Kaname Chidori. Rather, it tends to hunt passively. Wine cellars can be either active or passively cooled. Passively acquired maternal antibodies can suppress the antibody response to active immunization. Consequently, they radiate heat into the sky to passively cool buildings at night. Therapy for dystonia can involve prosthetics that passively simulate the stimulation. Abilities can be manually activated and passively upgraded. Some incorporate heatsinks to cool components passively. This incompleteness allows DNA to be passively bent on binding. It is a reliable way to generate income passively.