Who gave live Kingdom classification? What was the criteria used for such classification?

We can easily distinguish a living animal from a living plant in our surroundings. We do not find any difficulty in identifying an animal as long as we see it moving, eating and alive. When it comes to plants, we have an image of a structure having spread out appearance with green parts like leaves in our mind. So, to keep it as simple as it was, Carolus Linnaeus classified all the organisms of the world into two Kingdoms i.e. Plantae and Animalia. About Two Kingdom Classification System: A Portrait (Oil on Canvas) of Carolus Linnaeus. Our three-century old friend Carlous Linnaeus was a Swedish naturalist, who introduced this system of classification. In his book â??Systema Naturaeâ??, first published in 1735, He classified all organisms into two Kingdoms i.e. Animalia for animals and Plantae for plants. His classification system was based on two features i.e. nutrition and locomotion (movement). The animal kingdom includes all the moving multicellular organisms (animals) and the unicellular organisms called Protozoa (first animal). All other organisms such as green plants, mosses and multicellular seaweeds, moulds and mushrooms, lichens, minute-colored or colorless unicellular organism and bacteria were lumped together in the plant kingdom. read less

Two kingdom classification was given by Carolus Linnaeus that is kingdom plantae and animalia based on whether organism performing photosynthesis (plantae) and locomotion (animals). Three kingdom classification was given by Ernst Haeckel ie plantae, animalia and (protista for unicellular organism). Four kingdom classification was given by Copeland. He included Monera(Mychota) for prokaryotes along with plantae, animalia, protista. Five kingdom classification was given by Robert H.Whittaker. He included fungi based on saprophytic mode of nutrition. 5 kingdom classification includes Monera,protista,fungi,plantae, animalia. read less