Final answer:
ARACHAEA ingest b) Hydrogen gas (H2)
Step-by-step explanation:
Arachaea, a type of archaea, are known to ingest b)hydrogen gas (H₂). Unlike many other organisms that primarily use oxygen for respiration, archaea, including arachaea, can thrive in extreme environments where hydrogen is abundant. In these environments, hydrogen gas serves as an energy source for certain archaea, playing a crucial role in their metabolic processes.
Archaea are microorganisms that can be found in diverse habitats, including extreme environments such as hot springs, deep-sea hydrothermal vents, and acidic soils.
In these environments, hydrogen gas may be produced through various geochemical processes, and arachaea have adapted to utilize this hydrogen as an energy source. This metabolic capability allows them to survive and thrive in conditions where other organisms may struggle.
Understanding the unique metabolic strategies of different microbial organisms is essential in various scientific fields, including microbiology and environmental science. The ability of arachaea to ingest hydrogen gas as a metabolic substrate showcases the incredible diversity of life and the adaptations that enable organisms to exploit a wide range of energy sources in different environments.