The termite queen is about four inches long and looks like a half-deflated blimp. She receives chemical information from her workers and can produce worker and soldier offspring to meet the needs of the colony. Springtails are small insects that live in the termite mound with the termites. They sip from excretions the termites produce. While this may appear to be a parasitic relationship it is more commensal since the termites are not really hurt by the presence of the springtails.
Termites collect plant cellulose and use it to raise fungus.
They actually build gardens made from cellulose that they use to grow the fungus. The fungus are actually what the termites eat. This is an example of a mutualistic interaction because both the fungus and termites gain from the relationship. Termites also have endosymbiotic bacteria in their guts that help break down the plant cellulose. Essentially these are bacteria that only live inside the guts of termites.