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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
Explain Darwinian theory of evolution with the help of one suitable example.
Explain the interpretation of Charles Darwin when he observed a variety of smallblack birds on Galapagos Islands.
How do the observations made during moth collection in pre- and post- industrialized era in England support evolution by Natural Selection?
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
The largest unit in which gene flow is possible is :
(1) Organism
(2) Population
(3) Species
(4) Genes
Write short notes based upon the information known to you.
Darwin’s theory of natural selection
Answer each question in ‘One’ sentence only:
Identify which one of the following is a test cross.
Given alongside 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.
Explain the evolution of the long neck of giraffe according to Charles Darwin.
Identify the two organisms which are now extinct and are studied from their fossils.
The more characteristics two species have in common ______
Wild cabbage has evolved into new varieties like cabbage, broccoli, and cauliflower by ______
Select the correct statement.
Which of the following sequences fits into the organic evolution theory proposed by Charles Darwin and Alfred Wallace?
The ship on which Darwin was appointed as Naturalist was:
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?
Nature has a way of causing organisms that inherit advantageous traits to survive and reproduce more successfully than the ones that do not. This process is known as ______.
Mention Darwin's observations made on finches during his visit of Galapagos Islands. Write the explanation given by Darwin on his observations.
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?
Define the following term:
Speciation
Define the following term:
Natural selection
