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प्रश्न
Objection to Darwin's theory of natural selection.
Write the objection raised against Darwin's theory of natural selection.
Write any two objections that were raised against Darwin's Theory of Natural Selection.
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उत्तर
- Natural selection is not the only factor responsible for evolution
- Darwin did not mention any explanation about useful and useless modifications
- There is no explanation about slow changes and abrupt changes.
Notes
Students should refer to the answer according to their questions.
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.
Give the principles of Darwin's theory of natural selection.
Name and define the three types of natural selection.
The largest unit in which gene flow is possible is :
(1) Organism
(2) Population
(3) Species
(4) Genes
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.
Industrial melanism provides a good example of natural selection. Discuss.
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.
List any three drawbacks of Darwinism.
Answer the following question.
How did Charles Darwin express 'fitness'?
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
Natural selection is a driving force for evolution-How?
Identify the two organisms which are now extinct and are studied from their fossils.
Which concept was not included in Charles Darwin’s theory of Natural Selection?
What is the ancient name for all human beings?
What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor?
Which one of the following statement is correct?
Mention Darwin's observations made on finches during his visit of Galapagos Islands. Write the explanation given by Darwin on his observations.
Distinguish between directional, stabilizing and disruptive selection.
Charles Darwin explained the origin of species through ______.
The famous book "The Origin of Species" was written by ______.
Differentiate between Lamarck's Theory and Darwin's Theory.
Define the following term:
Natural selection
DDT resistant mosquitoes and different break sizes of African seed cracker finches show ______ type of selection respectively.
