Body Organization: In R.H. Whittaker's Five Kingdom Classification, Kingdom Fungi is specifically characterized by a multicellular body organization with loose tissue.

Structural Basis: Most fungi (except unicellular yeast) consist of thread-like structures called hyphae. These hyphae aggregate to form a mycelium, which represents a level of organization more complex than single cells but less integrated than the true, compact tissues found in plants or animals.

──────────────────────────────────────────────────────────────────────────────────────────