Question

what is three basis of classification done by whittekar

Answer 1

Whittaker classified organisms into five kingdoms on the basis of following three levels of organization ---

1) Cell structure ( prokaryotic or eukaryotic)
2) Modes and source of nutrition ( autotrophic and heterotrophic)
3) Body organization (unicellular or multicellular)

Answer 2

mode of nutrition
cellular organisation
body organisation