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Science / Biology / Adaptive Radiation: The development of a variety of species from a single ancestral form; occurs when a new habitat becomes available to a population. Evolutionary pattern of divergence of a great many taxa from a common ancestral species as a result of novel adaptations or a recent mass extinction. Examples: mammals during the Cenozoic Era after the extinction of dinosaurs at the close of the Mesozoic Era flowering plants during the Cretaceous Period diversified because of their reproductive advantages over gymnosperm and non-seed plants that dominated the floras of the world at that time.
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Radiation Adjective Synonyms: emission, emanation, diffusion, dispersal, shedding
Science / Weather / Radiation Fog: Fog that is created when radiational cooling at the earth's surface lowers the temperature of the air near the ground to or below its dew point. Formation is best when there is a shallow surface layer MORE
Science / Biology / Radiation: Energy emitted from the unstable nuclei of radioactive isotopes. MORE