RKMBs Forums .::Important::. off topic and offensive posts The Revenge of Frank Burns.

Prokaryotic single-celled organisms were the earliest and most primitive forms of life on earth. Prokaryotes can live in environments that would be deadly to most other organisms. They are able to live and thrive in various extreme habitats. Archaeans for example, live in areas such as hydrothermal vents, hot springs, swamps, wetlands, and even animal intestines.