The Inter-University Center for Astronomy and Astrophysics (IUCAA), is an autonomous institution set up by the University Grants Commission to promote nucleation and growth of a...

Chloroform was gradually replaced in the first half of the 20th century by the safer (although highly inflammable) ether, which is still used as an inexpensive anaesthetic today...

Ernst Mayr helped define the modern synthesis of evolutionary theory, proposing the "Biological Species Concept." In particular, his work on species and speciation helped scient...

There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, species.

The different types of taxonomical aids are: Herbarium: Herbarium sheets are used to preserve plant specimens. In these sheets, the plants are arranged according to their taxono...

The living organisms are divided into five different kingdoms – Protista, Fungi, Plantae, Animalia, and Monera on the basis of their characteristics such as cell structure...

Nitrogenase, the enzyme complex catalyzing N2 fixation, is found in phylogenetically diverse prokaryotes (archaea and bacteria, including cyanobacteria), ranging from aerobic he...

Ernst Haeckel in 1866 proposed three kingdom classification, i.e., Plantae, Protista and Animalia

In 1938, Herbert F. Copeland proposed a four-kingdom classification. The four kingdoms include Monera, Protoctista, Plantae and Animalia