∙ Holozoic nutrition - Organisms such as amoeba, protozoa, free-living like a human, tiger, etc., ingest the food particles. The particles are processed internally and digested.
∙ Saprophytic nutrition - Organisms such as fungi and yeasts breakdown the food outside their body and then absorb it.
∙ Parasitic mode of nutrition - Organisms such as lice, Cuscuta etc., live depending on the host. They derive nutrition from the host without killing it.