Question

What are the main criteria for the five-kingdom classification?

Answer 1

1. The five-kingdom classification was proposed by R. H. Whittaker which includes five kingdoms, such as Monera, Protista, Fungi, Plantae, and Animalia.
2. The main criteria for classification are as follows:
   • Cell type: prokaryote or eukaryote.
   • Body organization: unicellular or multicellular.
   • Cell wall: whether cell wall is present or not.
   • Nuclear membrane: whether a well-defined nucleus surrounded by a nuclear membrane is present or not.
   • Mode of nutrition: autotrophs or heterotrophs.