Psychrophiles, halophiles, methanogens and thermophiles are all examples of Archaebacteria, according to the American Society for Microbiology. The University of California Museum of Paleontology defines Archaebacteria as members of the domain Archaea. Because organisms from this domain do not have the same genetic and biochemical makeup as bacteria, many scientists refer to them as Archaea instead of Archaebacteria.
Psychrophiles live in areas with extremely cold temperatures, notes the American Society for Microbiology. Psychrophiles are very hardy organisms because they are able to survive when their enzyme activity is suppressed or they have decreased membrane fluidity, according to a 2006 article in Embo reports. In contrast, thermophiles are able to survive at extremely high temperatures. Experts from the Science Education Resource Center at Carleton College say optimal growing temperatures for thermophiles range from 60 to 108 degrees Celsius.
Many organisms cannot survive in overly salty conditions, but halophiles thrive in salty environments, according to the American Society for Microbiology. Methanogens are often found in wetlands and within the human digestive system. These organisms produce methane as a byproduct of some chemical processes. In humans, the methane is released in the form of flatulence or belching, explains Wikipedia. In wetlands, methanogens produce the methane that gives marsh gas its characteristic odor.Learn More
Bacteria helps to maintain the health of ecosystems by breaking down dead matter and cycling nutrients into usable forms. Bacteria live in all environments, and provide most of the oxygen on Earth.Full Answer >
According to Estrella Mountain Community College, people need to breathe because human cells require oxygen to use food energy efficiently and to release the carbon dioxide generated by that use. The lungs are designed to maximize their surface area as they fill with air in order to allow as much of the gases to diffuse into and out of the blood as possible.Full Answer >
Algae are any eukaryotes, other than plants, that conduct photosynthesis. They range from single-celled organisms to multicellular seaweeds over 180 feet in length with specialized organs. They are found in most environments, especially very wet ones, perhaps most notably the oceans, where they are the dominant producers.Full Answer >
The seven taxa, or units of biological classification, from largest to smallest, are kingdom, phylum, class, order, family, genus and species. The second taxon is called phylum for animals, but for plants, it is called a division.Full Answer >