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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 Darwinian theory of evolution with the help of one suitable example.
Answer each question in ‘One’ sentence only:
Identify which one of the following is a test cross.
The theory of Natural Selection was proposed by
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.
Explain the evolution of the long neck of giraffe according to Charles Darwin.
Answer the following question.
How did Charles Darwin express 'fitness'?
In which book Darwin had published his theory of Natural selection?
Identify the two organisms which are now extinct and are studied from their fossils.
What is the ancient name for all human beings?
According to Darwin, two different areas within a continent have different species because they have different:
Species occurring in the different geographical areas are called as ______.
Who proposed the theory of survival of the fittest?
The selective agent that was responsible for causing the change in peppered moth was ______.
Industrial melanism was highlighted by ______.
The famous book "The Origin of Species" was written by ______.
Match the name of the scientist in Column I with the name of the theory in Column II.
| Column (I) | Column (II) | ||
|---|---|---|---|
| i. | August Weisman | a. | Theory of origin of species |
| ii. | Hugo de Vries | b. | Theory of chemical evolution |
| iii. | Charles Darwin | c. | Theory of continuity of germplasm |
| iv. | Oparin Haldane | d. | Mutation theory |
Choose the correct option.
