Name: Adaptive Radiation
Uploaded: 2019-07-19
Duration: 6 min 34 s
Description: Adaptive radiation occurs when a species is confined to an isolated region and adapts to its new habitat, raising multiple diverse species from a single comm...

Question

What are the key concepts in the evolution theory of Darwin?

Accepted Answer

The Darwin theory of evolution or Darwinism states that the organisms that have favourable variation will reproduce and develop through natural selection in an environment. This theory was formulated in his book called 'On the Origin of Species'.

The two key concepts in the evolutionary theory of Darwin are:
Branching descent- The new species that arise are the descendant of common existing species. These new species are then adapted in the new environment and develop reproductive isolation.
Example: The Darwin Finches

Natural selection- It is the process that results in the adaptation of an organism to its environment due to genetic variations. These heritable variations enable better reproductive fitness and the survival of a species.
Example: Industrial melanism

What are the key concepts in the evolution theory of Darwin?

Important Questions on Evolution

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