Ram Ram ji..

In holozoic nutrition the organisms ingest preformed (food) organic material as well as inorganic material, digest and assimilate it (by themselves) in their body. While in parasitic nutrition the organisms ingest material that has been digested by other organisms and they only assimilate that digested material.

Hope it's helps

Explanation:

Holozioc nutrition is that nutrition in which an organism intake the complex food material by the process of ingestion. Example: mammals.

Parasitic nutrition is a nutrition in which an organism depends on other organisms for food. Example: leech,cascuta