Name: Three Kingdom System of Classification
Uploaded: 2019-07-19
Duration: 6 min 19 s
Description: Ernst Haeckel, a German researcher, suggested a three-kingdom categorisation scheme. Haeckel's three kingdoms were Animalia, Plantae and Protista. Watch and learn more!

Question

Make an outline of the five-kingdom classification. What are the advantage and disadvantage of this classification?

Accepted Answer

Features Monera Protista Fungi Plantae Animalia

Cell type Prokaryotic Eukaryotic Eukaryotic Eukaryotic Eukaryotic

Cell wall Non-cellulosic Present in some Chitin Cellulose Absent

Features Monera Protista Fungi Plantae Animalia

Mode of Nutrition Autotrophs and heterotrophs Autotrophs and heterotrophs Heterotrophs Autotrophs heterotrophs

Nuclear membrane Absent Present Present Present Present

The main advantages of five kingdom classification are as follows:
• Fungi are placed in a separate kingdom as their mode of nutrition differs from all other plants.
• Autotrophs and heterotrophs are placed in separate groups.
• Five kingdom classification is more natural than two kingdom classification and is based on bio composition and mode of nutrition, thus it shows series of evolution.

Disadvantages of Five Kingdom Classification:
• Unicellular algae are kept in kingdom Protista, whereas algae like multicellular organisms are kept in kingdom Plantae, but similar organisms must be put together. For example, unicellular and multicellular algae.
• There is no place for viruses in five kingdom classification.

Make an outline of the five-kingdom classification. What are the advantage and disadvantage of this classification?

Important Questions on Biological Classification

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