Search results
Results From The WOW.Com Content Network
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 ...
An aurora is a natural phenomenon. A natural phenomenon is an observable event which is not man-made. Examples include: sunrise , weather , fog , thunder , tornadoes ; biological processes , decomposition , germination ; physical processes , wave propagation , erosion ; tidal flow , and natural disasters such as electromagnetic pulses ...
Oligodynamic effect (biology and pharmacology of chemical elements) Online disinhibition effect (Internet culture) (psychology) Onnes effect (condensed matter physics) (fluid mechanics) (helium) Opposition effect (astronomy) (optical phenomena) (observational astronomy) (radiometry) (scattering, absorption and radiative transfer [optics])
Also gastrocoel. The central internal cavity of the gastrula in most animal embryos, fated to develop into the lumen of the digestive tube ; the primitive gut. The archenteron initially has only one open end, known as the blastopore. B birth blastocoel Also blastocoele, blastocele, cleavage cavity, and segmentation cavity. The fluid-filled or yolk -filled cavity that forms in the developing ...
3' untranslated region (3'-UTR). Also three-prime untranslated region, 3' non-translated region (3'-NTR), and trailer sequence.. 3'-end. Also three-prime end.. One of two ends of a single linear strand of DNA or RNA, specifically the end at which the chain of nucleotides terminates at the third carbon atom in the furanose ring of deoxyribose or ribose (i.e. the terminus at which the 3' carbon ...
In biology, a mechanism is a system of causally interacting parts and processes that produce one or more effects. [1] Phenomena can be explained by describing their mechanisms. For example, natural selection is a mechanism of evolution ; other mechanisms of evolution include genetic drift , mutation , and gene flow .
Often, this term is used without considering the causes of a particular event. Example of a physical phenomenon is an observable phenomenon of the lunar orbit or the phenomenon of oscillations of a pendulum. [4] A mechanical phenomenon is a physical phenomenon associated with the equilibrium or motion of objects. [5]
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 ...