Find out incorrect sentence
(a) Protista includes unicellular eukaryotic organisms
(b) Whittaker considered cell structure, mode and source of nutrition for classifying the organisms in five kingdoms
(c) Both Monera and Protista may be autotrophic and heterotrophic
(d) Monerans have well defined nucleus
R. H. Whittaker gave the five-kingdom classification that includes monera, protists, fungi, plants and animals. The kingdom Monera consists of unicellular, prokaryotic organsisms and is the most primitive group. They do not contain well-defined nucleus and cell organelles are absent.
Hence, the correct answer is d) Monerans have a well-defined nucleus