Five kingdom classification was developed by

✅Explanation:
-Robert Whittaker, an American ecologist, proposed the five-kingdom classification system in 1969.
-This system classified organisms into five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia, based on cell type, mode of nutrition, and other characteristics.
-Whittaker's classification was a significant advancement over the previous two-kingdom system and is still widely used today, although with some modifications.

🔑Key Points:
-Five Kingdom Classification was proposed by R.H. Whittaker. Five kingdoms defined in this classification were named Monera, Protista, Fungi, Plantae and Animalia.
-The main basis for classification was cell structure, body organisation, mode of nutrition, reproduction and phylogenetic relationships.
-The five-kingdom system was proposed by R.H. Whittaker (1969).
-The main criteria for classification used by him- 
-(1) Cell structure (2) Body organization (3) Mode of nutrition (4) Reproduction (5) Phylogenetic relationships.
-The kingdom defined by him was named-
-Monera- All the prokarytotes
-Protista- All the Unicellular eukaryotes
-Fungi- True fungi
-Plantae- All the multicellular plants
-Animalia- All the multicellular animals