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Evolution

Question

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Explain adaptive radiation with the help of a suitable example.

Solution

The process of evolution that starts from a single point and radiates in different directions is called adaptive radiation. For example the evolution of marsupials of Australia, each different from one another evolved from a common ancestral stock is found within the Australian island.

Some More Questions From Evolution Chapter

What were the units of life according to the early Greek thinkers ?

Mention the type of nutrition in the cells originated first during the origin of life.

Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

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?

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