what is the main difference between the Eubacteria and Archaebacteria kingdoms and the Protista, Fungi, Plantae, and Animalia kingdoms?

The prime difference between the Eubacteria and Archaebacteria kingdoms, and the Protista, Fungi, Plantae, and Animalia kingdoms is their cell wall.

Difference in the composition of cell wall in different kingdoms:

A structural layer encircling some kinds of cells, that is, just external to the cell membrane is the cell wall. In all the kingdoms identified, the prime difference is seen in the composition of the cell walls present.

Following are the cell wall compositions of all the kingdoms:

In Eubacteria, cell wall is formed of peptidoglycan with muramic acid
In Archaebacteria, cell wall is formed of proteins and polysaccharides
In fungi, cell wall is formed of chitin
In Plantae, cell wall is formed of cellulose
In Animals, no cell wall is present
In Protista, that is, the plant like protists, cell wall is formed of cellulose

Thus, the prime difference between all the kingdoms mentioned is the composition of the cell wall.

Find out more information about cell wall here:

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