Multicellular organisms fall within three of these kingdoms: plants, animals and fungi. Kingdom Protista contains a number of organisms that may at times appear multicellular, such as algae, but these organisms lack the sophisticated differentiation typically associated with multicellular organisms.

Explanation:

Living organisms are frequently divided into five kingdoms. Multicellular organisms fall within three of these kingdoms: plants, animals and fungi. Kingdom Protista contains a number of organisms that may at times appear multicellular, such as algae, but these organisms lack the sophisticated differentiation typically associated with multicellular organisms. The organisms within these kingdoms seemingly vary greatly, but at the cellular level, they share a number of features and are generally considered far more closely related to each other than to bacteria.