explain merits and demerits of Whittaker's classification
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Answered by
475
Merits:
- The separation of prokaryotes as a different kingdom is useful and fits into the contemporary understanding of various organisms.
- This classification is helpful in understanding the progression and development of cellular organization and mode of nutrition.
- This classification remains in par with and supports the theory of evolution by Darwin.
Demerits:
- The classification of kingdoms Monera and Protista are problematic. For one both the kingdoms include organisms with and without cell wall and ones that are autotrophic and heterotrophic.
- Viruses do not get a proper classification.
- Slime moulds, in spite of being considerably different from the rest of its counterparts in the kingdom, have been classified under Protista.
- Certain organisms under Protista are not eukaryotic, rather mesokaryotic.
- The separation of prokaryotes as a different kingdom is useful and fits into the contemporary understanding of various organisms.
- This classification is helpful in understanding the progression and development of cellular organization and mode of nutrition.
- This classification remains in par with and supports the theory of evolution by Darwin.
Demerits:
- The classification of kingdoms Monera and Protista are problematic. For one both the kingdoms include organisms with and without cell wall and ones that are autotrophic and heterotrophic.
- Viruses do not get a proper classification.
- Slime moulds, in spite of being considerably different from the rest of its counterparts in the kingdom, have been classified under Protista.
- Certain organisms under Protista are not eukaryotic, rather mesokaryotic.
Harshaldeore:
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Answered by
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Thanks for the question!
It is definitely a very interesting question to solve and do some brainstorming.
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The advantages of Whittaker's Five Kingdom Classification are as follows:
-- Prokaryotes differ from all other living organisms in their cell structure and cell multiplication; physiological and biochemical processes.
-- Prokaryotes have been placed separately Kingdom Monera whereas Unicellular and multi- cellular organisms are kept separate.
-- Fungi are also placed in a separate kingdom as their mode of nutrition differs from all other plants.
-- Autotrophs and heterotrophs are also kept separately based on their mode of nutrition
-- Five kingdom classification is more natural than two kingdom classification and is based on bio composition and mode of nutrition.
The disadvantages of Whittaker's Five Kingdom Classification are as follows:
-- Though Unicellular algae are kept in kingdom Protista, but algae- like multicelluar organisms are in kingdom Plantae. So, thumb rule is that similar organisms must be put together.
-- There is diversity in kingdom Protista and dissimilar organisms should not be placed together.
-- All organisms other than Moneran shows their polyphyletic origin which is a limitation of five kingdom classification.
-- Viruses have no separate space for them.
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Hope it helps and solves your query!!
It is definitely a very interesting question to solve and do some brainstorming.
**************************************************
The advantages of Whittaker's Five Kingdom Classification are as follows:
-- Prokaryotes differ from all other living organisms in their cell structure and cell multiplication; physiological and biochemical processes.
-- Prokaryotes have been placed separately Kingdom Monera whereas Unicellular and multi- cellular organisms are kept separate.
-- Fungi are also placed in a separate kingdom as their mode of nutrition differs from all other plants.
-- Autotrophs and heterotrophs are also kept separately based on their mode of nutrition
-- Five kingdom classification is more natural than two kingdom classification and is based on bio composition and mode of nutrition.
The disadvantages of Whittaker's Five Kingdom Classification are as follows:
-- Though Unicellular algae are kept in kingdom Protista, but algae- like multicelluar organisms are in kingdom Plantae. So, thumb rule is that similar organisms must be put together.
-- There is diversity in kingdom Protista and dissimilar organisms should not be placed together.
-- All organisms other than Moneran shows their polyphyletic origin which is a limitation of five kingdom classification.
-- Viruses have no separate space for them.
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Hope it helps and solves your query!!
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