Flexi Says: Bacteria are the prokaryotes that are most familiar to you, and the majority of known prokaryotes are bacteria. They are the most diverse and abundant group of organisms on Earth. Bacteria inhabit almost all environments where some liquid water is available and the temperature is below 140°C. They are found in sea water, soil, animal’s intestines, hot springs, and even in rocks deep beneath the Earth's crust. There are many thousands of known bacterial species, and many more are known to exist.
