Certain indigenous religious groups such as the Australian Aborigines are more typically totemic, whereas others like the Inuit are more typically animistic in their worldview.

Certain terms are used very commonly for groups of holidays. I

Certain methyl groups can be deprotonated.

Certain beliefs regarding the status of their past leader, and several of their outreach tactics and theology make them controversial in other orthodox groups.

Certain groups turn to destruction of property in order to immediately stop environmental destruction or to make visible arguments against forms of modern technology they consider detrimental to the earth and its inhabitants.

Certain Traditionalist Catholic groups, particularly Sedevacantists, consider Lumen Gentium to be the demarcation of when the Roman Church fell into heresy, pointing to the use of " subsistit in " rather than " est " as an abdication of the Church's historic ( and to them compulsory ) identification of itself alone as God's church.

Certain groups, like the Roma ( gypsies ), oppose organ donation on religious grounds, but most of the world's religions support donation as a charitable act of great benefit to the community.

Certain groups of seabirds called Common Murre migrate north by swimming.

Certain Jewish groups asked this be removed from the film.

Certain school rules pertain specifically to certain age groups, for instance, no one else may ride a San child's bicycle, and only Shack and Carriage children are allowed to build camp fires.

Certain groups, such as the Hutus of the Interahamwe, wish to eliminate the Pygmy and take the resources of the forest as a military conquest, using the resources of the forest for military as well as economic advancement.

Certain groups issued Aviation Safety Recommendations.

Certain Homotopy groups of n-connected spaces can be calculated by comparison with homology groups via the Hurewicz theorem.

Certain groups in the Lebanese National Movement wished to bring about a more secular and democratic order, but as this group increasingly included Islamist groups, encouraged to join by the PLO, the more progressive demands of the initial agenda was dropped by January 1976.

Certain subgroups of the Möbius group form the automorphism groups of the other simply-connected Riemann surfaces ( the complex plane and the hyperbolic plane ).

Certain groups of Dutch-speaking settler farmers (" Boers ") resented British rule, even though British control brought some economic benefits.

* Certain groups of fish have modifications to allow them to hear, such as the Weberian apparatus of Ostariophysians.

Certain groups of plants are soft, bulky, or otherwise not amenable to drying and mounting on sheets.

Certain groups, such as Orthodox Jews, have practiced endogamy as an inherent part of their religious beliefs and traditions.

Certain groups, notably Traditionalist Catholics, continue to practice Latin Mass.

Certain domestic groups, such as police and military units, would also sometimes lay wreaths at the monument.

Certain groups of Kenites settled among the Israelite population, including the descendants of Moses ' brother-in-law, though the Kenites descended from Rechab, maintained a distinct, nomadic lifestyle for some time.

Certain kinds of organisms require particular additional elements, for example the magnesium in chlorophyll in green plants, the calcium in mollusc shells, or the iron in the hemoglobin in vertebrate animals ' red blood cells.

Certain German prepositions require the dative: aus, außer, bei, mit, nach, seit, von, zu, and gegenüber.

Certain lesions require Long-term video-EEG monitoring with the use of intracranial electrodes if noninvasive testing was inadequate to identify the epileptic focus or distinguish the surgical target from normal brain tissue and function.

Certain self-limiting illnesses or minor injuries may not require further medical care past the first aid intervention.

Certain illumination algorithms and reflective or translucent materials may require more rays to be re-cast into the scene.

Certain applications may require multiple IP addresses on the server.

Certain cell types such as fat and muscle cells require insulin to absorb glucose.

Certain schools require their students to wear a tie ; especially many schools run by Christian missionaries.

Certain surgeries for cerebral aneurysms or aortic arch defects require that blood circulation be stopped while repairs are performed.

Certain vesicle-trafficking steps require the transportation of a vesicle over a moderately small distance.

Certain vehicles — like Citroëns and Ferraris — require specialist care due to their unique design.

Certain spells require expensive or rare elements to work properly, while the majority are merely spoken.

Certain performers or production companies would require that a kinescope be made of every television program.

Certain conditions require tracheal intubation ( insertion of a tube ) to secure the patency ( openness ) of the airway.

Certain areas on the board ( where cities existed historically ) have a square printed in them to designate them as city sites, which require five population tokens to produce a city — non city sites require twelve such tokens.

Certain scenes or even types of filmmaking, however, may require the use of zooms for speed or ease of use, as well as shots involving a zoom move.

Certain production and technical processes and treatments in factories, laboratories, hospitals, and other facilities require specific relative humidity levels to be maintained using humidifiers, dehumidifiers and associated control systems.

Certain character classes require less experience than others to achieve a new level.

Certain applications will not require that all of these conditions are met, but these five requirements are the most ideal.

Certain plants including the genetic model organism Arabidopsis thaliana naturally self pollinates, which makes it quite easy to create inbred strains in the laboratory ( other plants, including important genetic models such as Maize require transfer of pollen from one flower to another ).

Certain flags require more than 1 player for capture.

Certain applications require a specific type of dive suit ; long dives into deep, cold water normally require a hot water suit or drysuit, whilst diving into potentially contaminated environments requires a drysuit, dryhood, and drygloves at a minimum, thereby keeping the diver completely isolated from the diving environment.

Certain human behaviours, especially actions like the fingering in musical performances, are very complex and require many interconnected neural networks where information can be transmitted across multiple brain regions.