How do protists help termites?

Protists, particularly certain protozoa, help termites by aiding in the digestion of cellulose from wood. Termites consume wood, which is rich in cellulose, but they lack the enzymes necessary to break it down. The symbiotic protists live in the guts of termites and ferment cellulose, converting it into simpler compounds that the termites can absorb as nutrients. This mutualistic relationship is crucial for the survival of both the termites and the protists.