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प्रश्न
How did Darwin explain adaptive radiation ? Give another example exhibiting adaptive radiation.
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उत्तर
During his exploration of the Galapagos Islands, Darwin noticed that there were many varieties of finches in the same island. They varied from normal seed-eating ones to those that ate insects. This process of evolution, starting from a single point and radiating in different directions, is called adaptive radiation. Another example of adaptive radiation is the evolution of the Australian marsupials from a single ancestor. Placental mammals also exhibit similarities to their corresponding marsupials.
Examples: Placental wolf and the Tasmanian wolf
When more than one adaptive radiation occurs in an isolated geographical area, the phenomenon is called convergent evolution.
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संबंधित प्रश्न
Cite an example where more than one adaptive radiations have occurred in an isolated geographical area. Name the type of evolution your example depicts and state why it is so named.
Enlist any 'two' floral adaptations in salvia.
Humming birds and Hauk illustrate:
Adaptive radiation refers to ______
Can we call human evolution as adaptive radiation?
What is the first step in the mechanism of adaptive radiation?
In the mechanism of adaptive radiation, what happens after members of a species spread into different habitats?
Which geographical location provides a classic example of adaptive radiation with marsupial species?
What is convergent evolution?
What is the defining characteristic of the term 'adaptive' in the context of adaptive radiation?
