ADVANTAGES OF 5-KINGDOM SYSTEMDISADVANTAGES OF 5-KINGDOM SYSTEM Prokaryotes differ from all other living organisms in their cellular structure.Unicellular algae are kept in kingdom Protista, whereas algae like multicellular organisms are kept in kingdom Plantae. But similar organisms must be put together. Unicellular and multicellular organisms are kept separatelyThere is diversity in kingdom Protista. Dissimilar organisms must not be kept in the same group. Fungi are placed in a separate kingdom as their mode of nutrition differsThere is no place for viruses.Better than two kingdom classification.Similar organisms are kept far from each other. For example- Unicellular and multicellular algae.