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Question
What does the term 'adaptive radiation' describe in evolutionary biology?
Options
The process of evolution of different species in a given geographical area, starting from a point and radiating to other areas of geography and habitats
The ability of organisms to survive high levels of radiation exposure
The formation of new species through the mixing of genes from different populations in one location
The spread of a single species across multiple continents without any genetic changes
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Solution
Adaptive radiation is specifically defined as the process of evolution of different species in a given geographical area, starting from a point and radiating to other areas of geography and habitats. The term combines 'adaptive' (suited to a particular environment) and 'radiation' (spreading out from a single point into many directions), describing branching evolution from one ancestor into multiple related species adapted to different ecological conditions.
