What are the demerits of five kingdom classification?

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A distinction between unicellular and multicellular organisms is not possible in case of algae in this system of classification. Each group has so many diversities that it is difficult to keep them together. For example, monera and Protista contain both walled and wall-less organisms. Photosynthetic...
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A distinction between unicellular and multicellular organisms is not possible in case of algae in this system of classification. Each group has so many diversities that it is difficult to keep them together. For example, monera and Protista contain both walled and wall-less organisms. Photosynthetic and non-photosynthetic organisms, cellular or filamentous organism. Virus has not been included in this kingdom. Archaebacteria differ from other bacteria in structure, composition and physiology. Mycoplasma are quite different form bacteria where they have been placed along with prokaryotes. Symbiotic associations are not considered in this classification system. For example, lichens are organisms which are formed by the symbiotic association between fungi and algae. read less
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1. The disadvantages or the limitations of the five kingdom classification system are as follows ? 2. A distinction between unicellular and multicellular organisms is not possible in case of algae in this system of classification. 3. Each group has so many diversities that it is difficult to keep them...
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1. The disadvantages or the limitations of the five kingdom classification system are as follows ? 2. A distinction between unicellular and multicellular organisms is not possible in case of algae in this system of classification. 3. Each group has so many diversities that it is difficult to keep them together. For example, monera and Protista contain both walled and wall-less organisms. Photosynthetic and non-photosynthetic organisms, cellular or filamentous organism. 4. Virus has not been included in this kingdom. 5. Archaebacteria differ from other bacteria in structure, composition and physiology. 6. Mycoplasma are quite different form bacteria where they have been placed along with prokaryotes. 7. Symbiotic associations are not considered in this classification system. For example, lichens are organisms which are formed by the symbiotic association between fungi and algae. read less
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