Information: - Clostridium is a genus of Gram-positive bacteria, which includes several significant human pathogens, including the causative agent of botulism and an important cause of diarrhea, "Clostridium difficile". They are obligate anaerobes capable of producing endospores. The normal, reproducing cells of "Clostridium", called the vegetative form, are rod-shaped, which gives them their name, from the Greek or spindle. "Clostridium" endospores have a distinct bowling pin or bottle shape, distinguishing them from other bacterial endospores, which are usually ovoid in shape. "Clostridium" species inhabit soils and the intestinal tract of animals, including humans. "Clostridium" is a normal inhabitant of the healthy lower reproductive tract of women. - The Firmicutes (Latin: "firmus", strong, and "cutis", skin, referring to the cell wall) are a phylum of bacteria, most of which have Gram-positive cell wall structure. A few, however, such as "Megasphaera", "Pectinatus", "Selenomonas" and "Zymophilus", have a porous pseudo-outer membrane that causes them to stain Gram-negative. Scientists once classified the Firmicutes to include all Gram-positive bacteria, but have recently defined them to be of a core group of related forms called the low-G+C group, in contrast to the Actinobacteria. They have round cells, called cocci (singular coccus), or rod-like forms (bacillus). - Peptostreptococcaceae is a family of Gram positive bacteria in the class Clostridia . - The Clostridia are a highly polyphyletic class of Firmicutes, including "Clostridium" and other similar genera. They are distinguished from the Bacilli by lacking aerobic respiration. They are obligate anaerobes and oxygen is toxic to them. Species of the genus "Clostridium" are often but not always Gram-positive (see "Halanaerobium hydrogenoformans") and have the ability to form spores. Studies show they are not a monophyletic group, and their relationships are not entirely certain. Currently, most are placed in a single order called Clostridiales, but this is not a natural group and is likely to be redefined in the future. - Bacilli refers to a taxonomic class of bacteria. It includes two orders, Bacillales and Lactobacillales, which contain several well-known pathogens such as "Bacillus anthracis" (the cause of anthrax). All "Bacilli" are gram-positive bacteria. What object entity has the relation of 'parent taxon' with the subject 'peptostreptococcaceae'? Choices: - bacillales - bacilli - bacteria - clostridia - clostridiales - clostridium - firmicutes - human - lactobacillales - pectinatus - zymophilus
clostridiales
Q: Information: - Hell 's Half Acre is a large scarp located about 40 miles ( 64 km ) west of Casper , Wyoming on US 20/26 . Encompassing 320 acres ( 1.3 km2 ) , this geologic oddity is composed of deep ravines , caves , rock formations and hard - packed eroded earth . Hell 's Half Acre was used as the location for the fictional planet of Klendathu in the movie Starship Troopers . The location was known as '' The Devil 's Kitchen '' , '' The Pits of Hades '' , and '' The Baby Grand Canyon '' until a cowhand appeared and thought he was at Hell 's Half Acre , an area southwest of Casper full of alkali and bogs . Native American tribes used the ravines to drive bison to their death during their hunts . As of December 2005 , the roadside restaurant and motel / campground sitting atop the ravine were closed . The motel and the abandoned restaurant have since been torn down . The area is fenced off and there is no public access to the cliff edge nor the valley itself , but there is an interpretive sign west of the former restaurant . - The Salt Creek Oil Field is located in Natrona County, Wyoming. By 1970, more oil had been produced by this field than any other in the Rocky Mountains region and accounted for 20percent of the total production in Wyoming. - Casper (Lakota: "Pahasasa Otuwahe"; "Red Hill City") is a city in and the county seat of Natrona County, Wyoming, United States. Casper is the second-largest city in Wyoming, according to the 2010 census, with a population of 55,316. Only Cheyenne, the state capital, is larger. Casper is nicknamed "The Oil City" and has a long history of oil boomtown and cowboy culture, dating back to the development of the nearby Salt Creek Oil Field. In 2010, Casper was named the highest-ranked family-friendly small city in the West, and ranked eighth overall in the nation in Forbes magazine's list of "the best small cities to raise a family". - A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in the United States, Canada, Romania, China and Taiwan. In the United Kingdom and Ireland, county towns have a similar function. - Wyoming is a state in the mountain region of the western United States. The state is the tenth largest by area, the least populous and the second least densely populated state in the country. Wyoming is bordered on the north by Montana, on the east by South Dakota and Nebraska, on the south by Colorado, on the southwest by Utah, and on the west by Idaho. Cheyenne is the capital and the most populous city in Wyoming, with a population estimate of 63,335 in 2015. The state population was estimated at 586,107 in 2015, which is less than the population of 31 of the largest U.S. cities. - A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common censuses include agriculture, business, and traffic censuses. The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years. United Nations recommendations also cover census topics to be collected, official definitions, classifications and other useful information to co-ordinate international practice. What object entity has the relation of 'located in the administrative territorial entity' with the subject 'hell's half acre '? Choices: - center - dakota - east - hill - idaho - most - mountain - natrona county - nebraska - of - salt - south - southwest - taiwan - west - wyoming
A: natrona county