Transport phenomena.
D000818:Animals; D001369:Axons / Q000378:metabolism; D001692:Biological Transport; D001693:Biological Transport, Active; D049832:Decapodiformes; D004563:Electrochemistry; D007477:Ions; D008433:Mathematics; D008564:Membrane Potentials; D008566:Membranes / Q000378:metabolism
D007477:Ions