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, 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 groups require a prospective pastor to be married before he can be ordained, based on the view ( drawn from 1 Timothy 3 and Titus 1 ) that a man must demonstrate the ability to run a household before he can be entrusted with the church.

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 plants of the cactus species ( pathok ) were planted at the head of the grave, the middle and the foot their personal possessions like the bow and arrow, betel pouch, were also buried.

Certain " casting resins " and synthetic resins ( such as epoxy resin ) have also been given the name " resin " because they solidify in the same way as some plant resins, but synthetic resins are liquid monomers of thermosetting plastics, and do not derive from plants.

Certain plants always grow as vines, while a few grow as vines only part of the time.

Certain knapweeds have a tendency to dominate large stretches of landscape together with a few other plants, typically one or two grasses and as many other large herbs.

Pheromones also exist in plants: Certain plants emit alarm pheromones when grazed upon, resulting in tannin production in neighboring plants.

Certain tiles also display additional information ; power plants, for example, display the percentage of power being consumed when queried, and querying roads displays the amount of traffic on that tile.

Certain bacteria, notably Pseudomonas syringae, produce specialized proteins that serve as potent ice nucleators, which they use to force ice formation on the surface of various fruits and plants at about − 2 ° C.

Certain plants use alternative forms of photosynthesis, called Crassulacean acid metabolism ( CAM ) and C4.

Certain bacteria, notably Pseudomonas syringae, produce specialized proteins that serve as potent ice nucleators, which they use to force ice formation on the surface of various fruits and plants at about − 2 ° C.

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 plants, too, use nanosensors to detect sunlight ; various fish use nanosensors to detect minuscule vibrations in the surrounding water ; and many insects detect sex pheromones using nanosensors.

Certain duckweeds ( e. g. L. gibba ) are long day plants, while others ( e. g. L. minor ) are short day plants.

Certain plants in particular seasons might produce closed, self-pollinating ( cleistogamous ) flowers ; but the same plant or species might produce open, insect-pollinated flowers elsewhere or at a different time of year, and with no obvious pattern.

Certain plants species are also associated with vernal pools, although the particular species depend upon the ecological region.

Certain plants are also grown as a food source for their caterpillars.

Certain layers of plants will absorb minerals and water from the soil more effectively than others.

Certain plant diseases-notably phytoplasmas-can cause the proliferation of axillary buds, and cause plants to become bushy in appearance.

Certain beetles and fleas have been found to be effective, but those may pose even more risk to native plants than the removal of the cypress spurge itself.

Certain species have specialized bills that allow them to feed from the flowers of certain species of plants.