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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
Name the scientist who influenced Darwin and how ?
Explain the interpretation of Charles Darwin when he observed a variety of smallblack birds on Galapagos Islands.
State the two key concept of Darwinian theory.
The largest unit in which gene flow is possible is :
(1) Organism
(2) Population
(3) Species
(4) Genes
Briefly discuss the Theory of Natural Selection as given by Darwin.
Industrial melanism provides a good example of natural selection. Discuss.
List any three drawbacks of Darwinism.
The theory of natural selection for evolution was proposed by ______.
What is the ancient name for all human beings?
Which one of the following statement is correct?
Origin of species was written by:
Species occurring in the different geographical areas are called as ______.
Match List - I with List - II.
| List - I | List II | ||
| (a) | Adaptive radiation | (i) | Selection of resistant varieties due to excessive use of herbicides and pesticides |
| (b) | Convergent evolution | (ii) | Bones of forelimbs in Man and Whale |
| (c) | Divergent evolution | (iii) | Wings of Butterfly and Bird |
| (d) | Evolution by anthropo- genic action | (iv) | Darwin Finches |
Choose the correct answer from the options given below.
Write drawbacks of Darwin's theory
Industrial melanism was observed in ______.
The selective agent that was responsible for causing the change in peppered moth was ______.
Which one of the following was not explained by Darwinism?
Differentiate between Lamarck's Theory and Darwin's Theory.
