
Porifera: Definition, Characteristics, Examples
The scientist R. Grant used the term phylum-Porifera for the first time in 1836. Phylum-Porifera belongs to the sub-kingdom Parazoa. Although all the animals of Porifera are multicellular, the cells…
The scientist R. Grant used the term phylum-Porifera for the first time in 1836. Phylum-Porifera belongs to the sub-kingdom Parazoa. Although all the animals of Porifera are multicellular, the cells…
In 1822, the scientist Goldfuss first used the term protozoa. Protozoa are referred to as animals whose bodies are made up of a single cell. However, it represents a division…
Kingdom monera are divided into two major groups. One is Archaebacteria and the other one is Eubacteria. Archaebacteria are ancient and most primitive forms of bacteria living in extreme environments.…
Firstly cyanobacteria are kept in as myxophyceae of class algae (blue-green algae). Later some phycologists kept it into Cyanophyceae, while others kept it into Schizophyceae also. On the basis of…
Whittaker in 1969, proposed a new five Kingdom arrangement of organisms based on the complexity of cell structure, the complexity of the organism’s body, and the mode of obtaining nutrition.…