Question

Write down three drawbacks of two kingdom classification system

Answer 1

✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️

➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖
The two kingdom classification was  proposed by Carolus Linnaeus in 1758. He classified the living organisms into two main kingdoms. 
➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖

✔️Animal kingdom included all the animals.

✔️Plant kingdom included all plants and fungi.

➖➖➖➖➖➖➖➖➖➖➖➖➖➖
Drawbacks of two kingdom classification:
➖➖➖➖➖➖➖➖➖➖➖➖➖➖

1️⃣There was no distinction between eukaryotes and prokaryotes. For example- bacteria which lack nuclear envelope & cytoplasmic organelles but still they are placed in kingdom plantae.

2️⃣It kept photosynthetic and non photosynthetic organism together in plant kingdom. For example- Fungi which lack chlorophyll and are saprotrophic still placed in kingdom plantae.

3️⃣There are some organism which neither fall into plant or animal kingdom, like lichens.

4️⃣There are some organisms which have the characters of both plants & animals like euglena, chlamydomonas so can be placed in any kingdom.

5️⃣Unicellular plants like diatoms and animals like protozoans which have same level of organization and reproduce by fission but they are placed in different kingdoms.

✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️✳️

Answer 2

1.Cell organisation
2.photosyntesis and non-photosynthesis
3.mode of nutrition
4.cell wall
5.cell type