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Question

In the five-kingdom system of classification, which single kingdom out of the following includes blue-green algae, bacteria, and methanogenic Archaebacteria?

A
Monera
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B
Fungi
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C
Plantae
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D
Protista
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Solution

The correct option is A Monera
R. H. Whittaker proposed the five kingdom classification including monera, protists, fungi, plants and animals. The kingdom Monera is considered as the most primitive group. The kingdom Monera includes organisms such as the archaebacteria, nitrogen fixing bacteria, methanogenic bacteria, cyanobacteria (BGA) . These organisms are unicellular which do not have well-developed cell organelles such as the nucleus, mitochondria, chloroplast, etc
Thus, the correct answer is option A.

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