Question

1. Why the system of classification had been proposed? Mention the reasons.

Answer 1

Answer:

Linnaeus later classified all living organisms into two kingdoms – Plantae and Animalia. Whittaker proposed an elaborate five kingdom classification – Monera, Protista, Fungi, Plantae and Animalia.

Explanation:

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Answer 2

Answer:

• Since it is nearly impossible to study all the living organisms, it is necessary to devise some means to make this possible. This process is CLASSIFICATION. Classification is the process by which anything is grouped into convenient categories based on some easily observable characters.
• Classification allow us to understand diversity better.
• Classification helps us to learn plants , animals and other organisms , their features and similarities and differences.
• It helps in the identification of living organisms as well as understanding the diversity of living organisms .
• The study of a few representatives from each distinct group helps us to know about the characterstic features of organisms of that group.
• Classification make the study the phylogeny and evolutionary history of organisms possible.
• The five kingdom classification was proposed by Whittaker which includes  –1. Monera, 2.Protista, 3.Fungi, 4.Plantae and 5.Animalia. The main criteria used for the five kingdom classification were cell structure, body organisation, mode of nutrition and reproduction, and phylogenetic relationships.

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