Railway Exam » Railway Exam Study Materials » Biology » Two Kingdom Classification

Two Kingdom Classification

The two Kingdom Classification systems proposed by Carl Linnaeus differentiated organisms into Plant and Animalia Kingdom Classification. The Classification was based on several parameters such as mode of nutrition and presence or absence of cell wall.

The practice of grouping or categorising living things based on similarities and differences is known as classification. Biology is the study of living things, namely organisms and the environments in which they live. Classification is a key strategy used by biologists to discover the species that comprise the living world. The categorisation of organisms in biology is based on their similarities and differences. 

Classification is the process of grouping organisms dependent on their morphological and genomic similarities and contrasts. The practice of classifying organisms united by common traits and evolutionary history is known as biological categorisation. There are several classification systems, but the two most common are the Linnaean system as well as the contemporary categorisation system. The Linnaean system relies on the categorization system hierarchy introduced by Carolus Linnaeus in the 18th century.  

The Concept of Two Kingdom Classification 

One of the most fundamental ways of categorising creatures is the notion of two kingdoms, plant and animal kingdom classification of life. In simple words, it refers to the distinction between plants and animals, while the concept in biology is a little more difficult. Carl Linnaeus presented the theory initially, recognising that living things shared a restricted set of features (such as the capacity to move or the possession of a cell nucleus) and hence must have originated from the same source. He then classed species based on their physical traits, such as their body form or movement.

One of the first systems of biological categorization is the doctrine of the two kingdoms, which divides living species into Animalia and Plantae. Carl Linnaeus developed the plant and animal kingdom of classification, and other ancient thinkers elaborated on it. Scientists improved the hypothesis throughout the ages until the contemporary framework of biological classification was formed. The present categorization system has overtaken the notion of the two kingdoms, but it is still valuable for teaching and comprehending the evolutionary links between various groups of creatures.

Kingdom Plantae Classification 

The plant kingdom is the biggest and most diverse collection of living things on Earth, and it includes both blooming plant species, which account for the vast majority of plant species, and non-flowering plant species, which include algae, fungus, and bacteria. Terrestrial plants, which are largely green, leafy species, and marine plants, which are blue or red-coloured species that dwell in the water, are both members of the plant kingdom of classification. Green algae, which are single-celled creatures that are not commonly considered plant kingdom members, are also included in the plant kingdom. Finally, under the two kingdom categorization, the plant kingdom contains fungi, which are eukaryotic creatures with no nucleus in their cells. 

The plant kingdom is a varied kingdom of classification of organisms distinguished by their stems, leaves, roots, and flowers. Vegetation in the plant kingdom includes mosses, ferns, and conifers, among others. Seed plants, which comprise groups such as grasses, cactus, and flowering plants, are the most numerous plants on Earth. The vast majority of plants on the planet are herbaceous, meaning they get most or all of their sustenance from the soil.

Kingdom Animalia Classification 

The Animalia kingdom classification is a diversified assemblage of all of Earth’s wildlife populations. It includes all animal species, from the smallest protozoa to the greatest mammals, and from the most advanced to the least evolved. It is the world’s biggest and most diversified collection of creatures, containing all major groups of living species. One of the most distinguishing features of the animal kingdom is its diversity of living forms.

The concept of Animalia kingdom classification refers to the taxonomic kingdom that includes all animals, from amoebas to blue whales. Carl Linnaeus defined the kingdom in the 18th century, with animals serving as the primary taxonomic category. The kingdom is divided into five subkingdoms and one superkingdom, which is divided into three domains. The subkingdoms are Vertebrata (vertebrates), Craniata (invertebrates with some exceptions), and Mollusca (molluscs, snails and squids).  

Conclusion 

One of the first classification systems, the two kingdom classification system, was given by Carl Linnaeus and later developed by biological systematists. The two-kingdom system is a taxonomic classification system that divides all organisms that are known to science into two distinct groups, the Plantae, also known as the Plant, and the Animalia kingdom classification, also known as the Animals. Organisms are placed into one of these two groups based on the characteristics that are the most distinct between the two groups. The Plantae, which includes the plants, are a group of organisms that are characterised by their cell walls containing cellulose and the presence of chlorophyll. And the Animals with the absence of cell walls in their cells.

faq

Frequently asked questions

Get answers to the most common queries related to the Railway Examination Preparation.

The Two Kingdom Classification System was given by?

Ans. Carl Linnaeus gave the Two Kingdom Classification in which he classified the living organisms by following the ...Read full

Who is known as the father of classification?

Ans. Carl Linnaeus who has made many contributions to the effective grouping of organisms sharing similar characteri...Read full

What are the prime characteristics of the Animalia Kingdom Classification?

Ans. The basis of the classification of organisms into this kingdom of classification...Read full

What are the prime characteristics of Plant Kingdom Classification?

Ans. The basis of the classification of organisms in this Kingdom of classification...Read full