what ix adaptive radiation??????

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Adaptive radiation is when a species rapidly adapt to fill available niches in the ecosystem. It is pattern of evolution that is usually seen in habitats where new ecological niche have opened up. This could be due to habitats destruction ,mass extinction, new habitats formation.

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Hello

The adaptive radiation is term in evolutionary biology. Adaptive radiation is a process in which organism diversify rapidly from an ancestral species into multiple of new forms , particularly when a change in environment makes new resources available.

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Adaptive radiation, evolution of an animal or plant group into a wide variety of types adapted to specialized modes of life. Adaptive radiations are best exemplified in closely related groups that have evolved in a relatively short time.

Examples of adaptive radiation are all around us, in every living organism. No organism today is exactly the same as its original ancestor. Some species have changed significantly, such as the diversification from a single species into the elephant and the hyrax. One only has to look at the image below to understand how the selection of a different habitat or even a similar habitat but a different choice of diet can cause huge anatomical and physiological changes during the process of adaptive radiation.