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Evolution

Question
CBSEENBI12002209
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The process by which organisms with different evolutionary history evolve similar to a common environmental challenge is called 

  • natural selection

  • convergent evolution

  • non-random evolution

  • adaptive radiation

Solution

B.

convergent evolution

Convergent evolution occurs in an unrelated group of organisms. It is the development of similar functional structures but in related groups. 
The process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography is called adaptive radiation. Natural selection is the basis of evolution.

Some More Questions From Evolution Chapter

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

Evolution is a discontinuous process. Is it correct ?

Give the three key factors of the modern concept of evolution.

Which other term can be used for natural selection ?

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