On What Basis Plants And Animals Are Put In Different Categories?

Plants and animals are categorized on the basis of the following factors:

  • Plants are immobile. They do not exhibit locomotion. Animals, on the other hand, have distinguished locomotory organs or at least show some movement. They move from one place to another in search of food, shelter etc
  • Plants exhibit an autotrophic mode of nutrition. They are capable of synthesizing their own food. But animals are heterotrophic. They depend upon plants, the producers for nutrition
  • Plant cells possess cell walls. Animal cells do not exhibit cell walls. 

Aristotle first classified plants and animals on the basis of basic morphological characters. Later on, Linnaeus classified living entities into two kingdoms – Plantae and Animalia. The five-kingdom classification proposed by Whittaker saw the following kingdoms – 

  • Monera
  • Protista
  • Fungi 
  • Plantae
  • Animalia 

The five-kingdom classification had the following criterion for classification:

  • Structure of cell
  • Body organization
  • Mode of nutrition
  • Reproduction
  • Phylogenic relationships (diversification of a species and evolutionary development)

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