Question

$\huge\underline\mathtt{Question}$
What advantages does the five-kingdom classification have over the two-kingdom classification?



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Answer 1

Answer:

Five kingdom classification is better and more natural than two kingdom classification. It places the unicellular and multicellular organisms separately. It places the autotrophs and heterotrophs separately. It places the fungi in a separate group (kingdom Fungi) as it has a different mode of nutrition.

Answer 2

Answer:

The two kingdom classification was proposed by Carolus Linnaeus. The criteria considered for classification were type of nutrition and mobility.

The two kingdoms were Plantae and Animalia. 

Plantae are photosynthetic autotrophs and non-motile.

Animals are heterotrophs and motile.

In five kingdom classification, the criteria to classifiy organisms include

1. Presence / absence of cell wall

2. Presence / absence of nuclear envelope

3. Mode of nutrition

4. Mode of reproduction.

5. Body organisation, Unicellular or multicellular

Acoordingly the organisms were grouped in 5 Kingdoms namely,

Monera - Unicellular prokaryotic organisms -Example, Bacteria

Protista - Unicellular eukaryotic organisms - Example, Euglena, Amoeba, Paramoecium etc

Fungi - Eukaryotic, multicellular organisms with saprophytic mode of nutrition.

Example, Rhizopus, Agaricus etc

Plantae - Eukaryotic multicellular organisms, that are photosynthetic autotrophs Example, Mango, Coconut etc

Animalia - Eukaryotic multicellular organisms, heterotrophic in nutrition 

Example, Lion, Dog, Monkey etc

Advantages of Five kingdom over two kingdom classification

1. The  five kingdom classification seggregates organisms based on five basic criteria, as compared to two kingdom classification where organisms are classified based on two criteria. 

2. Unicellular prokaryotes and eukaryotes as well as Fungi were not included in the two kingdom classification.

3. Mixotrophs like Euglena too were not included in the two kingdom