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प्रश्न
Write a short note based on the information known to you.
Darwin’s theory of natural selection.
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उत्तर
- Darwin is famous for the theory which he published in the book titled ‘Origin of Species’.
- Darwin’s theory of natural selection is based on the concept of survival of the fittest.
- Organisms can reproduce prolifically.
- Under limited resources, organisms compete with one another in a life-threatening manner for survival.
- According to this theory, only those organisms survive which show modifications for winning the competition. The selected organisms then give rise to new species with their specific set of characters.
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संबंधित प्रश्न
Explain the interpretation of Charles Darwin when he observed a variety of smallblack birds on Galapagos Islands.
Give the principles of Darwin's theory of natural selection.
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
What is "fitness of an individual" according to Darwin?
Name and define the three types of natural selection.
All organisms produce more young ones. Comment
Give the scientific name of the organism which is cited as the classical example of "natural selection".
Industrial melanism provides a good example of natural selection. Discuss.
Answer the following question.
How did Charles Darwin express 'fitness'?
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
Wild cabbage has evolved into new varieties like cabbage, broccoli, and cauliflower by ______
What is the ancient name for all human beings?
A basket of vegetables contains carrot, potato, radish and tomato.
Which of them represent the correct homologous structures?
If the fossil of an organism is found in the deeper layers of earth, then we can predict that
The ship on which Darwin was appointed as Naturalist was:
Theory of natural selection dwells on:
Who proposed the theory of survival of the fittest?
Mention Darwin's observations made on finches during his visit of Galapagos Islands. Write the explanation given by Darwin on his observations.
Mention four main postulates of Darwin's theory.
Define the following term:
Natural selection
