A symbiotic relationship between Elk and magpies is a mutualism the elk have bugs in there ears and the magpies come and clean them/ eat the bugs out of the elks ears. In return the elk offer protection from predators and food.
Elk have a parasitic relationship with misquotes, misquotes are a annoying pest/bug that suck the elks blood why this is a parasitic relationship is the misquotes gets blood and food from the elk and the elk are harmed because suck the elks blood
Elk have a communistic relationship with grass because the elk eat the grass and it does not harm the elk gets its food and its protien from the grass.