NCERT Class 11 Biology Chapter 2 Biological Classification Notes
NCERT Class 11 Biology Chapter 2 Notes NCERT Class 11 Biology Chapter 2 Biological Classification Notes-Topic 1: Introduction: A Two Kingdom system of classification was developed during Linnaeus' time, with Plantae and Animalia kingdoms encompassing all plants and animals, respectively. This system grouped together eukaryotes and prokaryotes, unicellular and multicellular creatures, photosynthetic (green algae) and non-photosynthetic (fungi) species. Although classifying organisms into plants and animals was simple and straightforward, There were a lot of species that didn't fit into either group. As a result, the two-kingdom classification, which had been in use for a long time, was determined to be inadequate. Five Kingdom Classification: A Five Kingdom Classification was proposed by R.H. Whittaker in 1969. Monera, Protista, Fungi, Plantae, and Animalia were the kingdoms he defined. Cell structure, body organization, manner of nourishment, reproduction, and phylogenetic li...