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प्रश्न
What are objections raised against Darwin's theory?
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उत्तर
Some of the main objections raised against Darwin’s theory of natural selection are as follows:
- Natural selection is not the only factor responsible for evolution.
- In his theory, Darwin did not explain the inheritance of useful and useless modifications.
- No explanation regarding slow and abrupt changes was provided in this theory.
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संबंधित प्रश्न
Explain the interpretation of Charles Darwin when he observed a variety of smallblack birds on Galapagos Islands.
What is "fitness of an individual" according to Darwin?
State the two key concept of Darwinian theory.
Give the scientific name of the organism which is cited as the classical example of "natural selection".
Briefly discuss the Theory of Natural Selection as given by Darwin.
Given below are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
Answer the following:
- What name has been given to this phenomenon?
- Give the common name and the scientific name of the insect involved in this phenomenon.
- Briefly mention why the changes shown in the two figures appeared.
- The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
- Name and explain the said theory.
- Give the name of the scientist who gave this theory.
Answer the following question.
How did Charles Darwin express 'fitness'?
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
The theory of natural selection for evolution was proposed by ______.
Identify the two organisms which are now extinct and are studied from their fossils.
Differences between organisms in a species are described as variations. Which of the following would you describe as a continuous variation?
Wild cabbage has evolved into new varieties like cabbage, broccoli, and cauliflower by ______
Which one of the following statement is correct?
What are the key concepts in the evolution theory of Darwin?
Who proposed the theory of survival of the fittest?
Industrial melanism was observed in ______.
The selective agent that was responsible for causing the change in peppered moth was ______.
Differentiate between Lamarck's Theory and Darwin's Theory.
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.
