In the phylum Arthropoda, there is the most number of animal species. The phylum Arthropoda contains more than 1079290 known species like Apis, Laccifer, Millipede, Palaemon, etc. The name Arthropoda…
The phylum Annelida is a group of organisms having ring-shaped segments. The term Annelida is derived from the Latin word; “Annulus = ring“ There are more than 15000 known species…
Aschelminthes is considered a superphylum, which includes many phyla. The term Aschelminthes was first introduced by Grobben in 1910. Earlier in 1859, Gegenbour was named Nemathelminthes for this phylum. So,…
In 1859 the scientist Gegenbaur proposed the name phylum platyhelminthes. Originally the animals of this group were placed in the taxon vermis by Linnaeus in 1735 along with other worms.…
Phylum Ctenophora and Phylum Cnidaria were in one phylum (phylum Coelenterata) in the early days. Later Coelenterata was divided into two separate phyla one is Cnidaria and the other is…
Phylum Cnidaria is the group of multicellular animals belonging to the sub-kingdom of Enterozao. According to tissue differentiation, the animals of this group are two types diploblastic and triploblastic. In…
The scientist R. Grant used the term phylum Porifera for the first time in 1836. Porifera belongs to the sub-kingdom Parazoa. Although all the animals in this group are multicellular,…
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…
The respiratory gases are taken during normal breathing extend into two regions between the respiratory tract i.e, the conducting zone and the respiratory zone. The wall of the respiratory transport…
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.…