Question

Archaebacteria and eubacteria have been included under the kingdom:
a. Monera
b. Plantae
c. Fungi
d. Protista
e. Animalia

Answer 1

Hint: Firstly, we should know about the definitions of Archaebacteria and eubacteria. In biological terms, one can define that both the archaebacteria and eubacteria are the microorganisms that are having only a single cell. So, they are usually called prokaryotes. However, the chemical makeup in both of them is different.

Complete answer:
- A kingdom that includes prokaryotic unicellular organisms is Monera. As we know, the kingdom includes bacteria. All types of bacteria include Eubacteria, Archaebacteria, and Cyanobacteria.
- We should know that these organisms lack the membrane-bound organelles. However, they have nucleoid and genetic material which is deprived of the nuclear envelope.
- Organism which is included in the kingdom Plantae is eukaryotic and multicellular. Their cells contain cellulose walls. Many of them have a transport system. Since they can undergo photosynthesis, they are autotrophic. They display different methods of alternation of generation.
- Organism which is included in the kingdom Animalia is multicellular. They obtain their energy by overwhelming food substances which release energy and thus they are heterotrophic
- Organisms which are included in kingdom fungi are the best recyclers around and thus, called Decomposers. They have no chlorophyll and they are non-photosynthetic. Their cell walls are made of chitin (kite-in) instead of cellulose. Also, they are Non-motile.
- Organisms which are included in kingdom protista are said to be mainly minuscule and unicellular, or they are made up of a single cell. However, they have cell walls and reproduce by creating spores, just like yeasts.

Hence, the correct answer is option (A).

Note: When we talk about them, we can say they also contain differences between them. One can say that archaebacteria are usually found in extreme environmental conditions. However, on the other hand, the eubacteria are found everywhere on earth. However, both of them come under the category of Monera.