Methanogens, thermophiles, and halophiles are some of the most primitive forms of life found on earth and thrive in very harsh environments. these unicellular, prokaryotic organisms most likely belong to which of the following kingdoms? fungi protista bacteria archaea can you guys me on this problem i need with it. you all! : d

The correct answer is-

Archaea.

According to the three domain system of classification ( proposed by Carl Woese), Archaea  is a domain of prokaryotic organisms ( that is lacking nucleus and subcellular compartements) that includes primitive forms of bacteria.

These organisms are adapted to survive under extremely harsh environmental conditions ( therefore also called extremophiles) such as hotsprings, boiling mud surrounding volcanoes.

Example- Methanogens, thermophiles, and halophiles.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.

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jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.