Question

what is a host organism.

Answer 1

A host organism is an organism that harbours a parasite and supplies it with nutrients. A host is not merely the term to describe the supplier of nutrients in a parasitic relationship, however, but can also be applied to nutrient suppliers in mutually beneficial, symbiotic relationships. Plants which supply nutrients to epiphytes are called hosts, but the term is applied loosely in this regard.

Answer 2

the organism which feed on other organism and take complex food