Question

Explain Darwin's theory of "Natural selection "with an example ?




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Answer 1

Explanation:

Darwin's process of natural selection has four components.

• Variation. Organisms (within populations) exhibit individual variation in appearance and behavior. ...
• Inheritance. Some traits are consistently passed on from parent to offspring. ...
• High rate of population growth. ...
• Differential survival and reproduction

Answer 2

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Darwin's Theory of Evolution by Natural Selection

• More individuals are produced each generation that can survive.
• Phenotypic variation exists among individuals and the variation is heritable.
• Those individuals with heritable traits better suited to the environment will survive.
• When reproductive isolation occurs new species will form.

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The theory of natural selection was proposed by Charles Darwin. It explains that nature has its own way to eliminate the organisms which cannot survive. It states that in a population, there always exists a number of variations based on different combinations of traits, now carrying capacity of the environment are not unlimited. Hence, nature selects the best-suited organisms that have a greater chance to become parents for the next generation.The event of industrial melanism is one of the phenomena which explains the natural selection. There were a number of white coloured moths which camouflaged on the trees. The black coloured moths were easily visible. After the industrial revolution, due to the deposition of the soot on the trees, the white coloured moths were easily killed by the predators. This is a form of natural selection which favours the survival of the organism which can adapt to the surrounding.

More Question:

Q. What is Darwinism explain with example?

Ans. Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.

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