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The tooth-to-tail ratio (T3R), in military jargon, is the number of military personnel it takes to supply and support ("tail") each combat soldier ("tooth"). While both "tooth" and "tail" soldiers may find themselves in combat or other life-threatening situations, and both may spend much time in non-combat duties, "tooth" soldiers are those whose primary function is to engage in combat.
This is seen, for example, throughout The Cambridge Dictionary of Human Biology and Evolution. The greatest number of teeth in any known placental land mammal [specify] was 48, with a formula of 3.1.5.3 3.1.5.3. [9] However, no living placental mammal has this number. In extant placental mammals, the maximum dental formula is 3.1.4.3 3.1.4.3 ...
The cause of these deformities is due to a mutation in enamel in expression. Dental patients with this disease should be especially cautious and visit their dentist frequently. Natal and neonatal teeth are an anomaly that involves teeth erupting in a newborn infant's mouth earlier than usual. The incidence ranges from 1:2,000 to 1:3,500 births.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Armed to the Teeth may refer to: Armed to the Teeth (Abandoned Pools album), 2005; Armed to the Teeth (Swollen Members album), 2009 This page was last edited on 6 ...
Also called functionalism. The Darwinian view that many or most physiological and behavioral traits of organisms are adaptations that have evolved for specific functions or for specific reasons (as opposed to being byproducts of the evolution of other traits, consequences of biological constraints, or the result of random variation). adaptive radiation The simultaneous or near-simultaneous ...
The primordium contains each of the primordial tissue types, essential for the development of successive teeth. These primordial tissues together form the enamel organ, dental papilla and dental sac. Also during the cap stage is the formation of a depression within the deepest part of each tooth bud of the dental lamina. The dental lamina is a ...
Larger primates tend to need larger teeth to process more food to meet the energy requirements of a larger body, [22] but the evolution of postcanine megadontia is more likely due to the quality of the diet. The tough, “low-quality food stuffs" consumed by robust Australopithecines, coupled with their lack of food processing technology, lead ...