Final answer:
Archaea have bio chemicals, live in extreme environments, and are prokaryotic microorganisms.
Step-by-step explanation:
Archaea have bio chemicals and they live in extreme environments such as thermal vents. They are unicellular, prokaryotic microorganisms that differ from bacteria in their genetics, biochemistry, and ecology. Some archaea are extremophiles, living in environments with extremely high or low temperatures, or extreme salinity. Archaea are now known to live just about everywhere on Earth and are a major aspect of life on Earth.