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प्रश्न
Objection to Darwin's theory of natural selection.
Write the objection raised against Darwin's theory of natural selection.
उत्तर
Objections to Darwin’s natural selection theory:
- Natural selection theory explained “survival of the fittest” but not “arrival of the fittest”.
- Darwin did not take into account the hereditary principles.
- He could not provide a satisfactory explanation for the cause, origin and inheritance of variations.
- Certain useless characters are also inherited. He could not explain the inheritance of useless variations.
- He was unable to differentiate variations as hereditary and environmental variations.
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संबंधित प्रश्न
Explain Darwinian theory of evolution with the help of one suitable example.
Give the principles of Darwin's theory of natural selection.
How do the observations made during moth collection in pre- and post- industrialized era in England support evolution by Natural Selection?
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
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.
Give the scientific name of the organism which is cited as the classical example of "natural selection".
State Darwin’s theory of evolution.
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'?
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
In which book Darwin had published his theory of Natural selection?
The theory of natural selection for evolution was proposed by ______.
Identify the two organisms which are now extinct and are studied from their fossils.
The more characteristics two species have in common ______
Which concept was not included in Charles Darwin’s theory of Natural Selection?
Natural selection is called ‘survival of the fittest. Which of the following statements best describes an organism?
What is the ancient name for all human beings?
A basket of vegetables contains carrot, potato, radish and tomato.
Which of them represent the correct homologous structures?
Select the correct statement.
If the fossil of an organism is found in the deeper layers of earth, then we can predict that
Study the following cross and showing self pollination in F1, fill in the blank and answer the question that follows
| Parents | RRYY | × | rryy |
| Round, Yellow | wrinkled, green | ||
| F1- | Rr Yy | × | ? |
| Round, yellow |
The ship on which Darwin was appointed as Naturalist was:
Theory of natural selection dwells on:
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.
What are the key concepts in the evolution theory of Darwin?
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
The selective agent that was responsible for causing the change in peppered moth was ______.
Which one of the following was not explained by Darwinism?
The scientist who is regarded as the "Father of Evolution" is ______.
The famous book "The Origin of Species" was written by ______.
Define the following term:
Speciation
Differentiate between Lamarck's Theory and Darwin's Theory.
Define the following term:
Natural selection
