title: Respiratory gas exchange in ascidans: an almost diffusion limited animal with a cardiovascular system.
mesh_terms: D000818:Animals; D010100:Oxygen / Q000378:metabolism*; D010101:Oxygen Consumption; D010539:Permeability; D014561:Urochordata / Q000378:metabolism*; D014639:Vanadium / Q000378:metabolism
chemical_list: D014639:Vanadium; D010100:Oxygen