Archaea (/ɑːrˈkiːə/ ar-KEE-ə; sg.: archaeon /ɑːrˈkiːɒn/ ar-KEE-on) is a domain of single-celled organisms. These microorganisms lack cell nuclei and are...

has been identified in Chlorella vulgaris. Since only bacteria and some archea possess the genes and enzymes necessary to synthesize vitamin B12, plant...

The Alban Tower, designed by Archea Associati (Italy), completed in 2021...

acetate and either hydrogen or formate. Finally, methanogens (in the domain Archea) convert acetate to methane. Fermentation reacts the reduced form of nicotinamide...

yield of photosynthetic processes in certain high energy environments. Many Archea require very high temperatures, pressures or unusual concentrations of chemical...

phosphofructokinase (PFP or PPi-PFK), which is found in most plants, some bacteria, archea, and protists, but not in animals. This enzyme uses pyrophosphate (PPi)...

modern name; ancient name unknown Komos, Komo Korinthos Korinthia, Greece Archea Korinthos Kos island of the Dodecanese, off Bodrum Cos (Κως), İstanköy,...

from viral pathogens, called bacteriophages. Prokaryotes (bacteria and archea) also possess acquired immunity, through a system that uses CRISPR sequences...

types of positive phototaxis are observed in prokaryotes (bacteria and archea). The first is called "scotophobotaxis" (from the word "scotophobia"), which...

branches out into three main groups: Bacteria (left branch, letters a to i), Archea (middle branch, letters j to p) and Eukaryota (right branch, letters q to...