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प्रश्न
Explain the evolution of the long neck of giraffe according to Charles Darwin.
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उत्तर
Darwin explained the evolution of the long neck of modem Giraffe by presuming the existence of variability in length of neck and legs in the ancestral population of Giraffe. Long-necked giraffe with long forelegs was more successful in reaching soft leaves of trees for feeding. Therefore, natural selection favored long neck progeny generation after generation.
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संबंधित प्रश्न
The theory of Natural Selection was proposed by
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.
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
Natural selection is called ‘survival of the fittest. Which of the following statements best describes an organism?
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:
Theory of natural selection dwells on:
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.
Distinguish between directional, stabilizing and disruptive selection.
