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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
Name and define the three types of natural selection.
Answer each question in ‘One’ sentence only:
Identify which one of the following is a test cross.
State Darwin’s theory of evolution.
List any three drawbacks of Darwinism.
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 ______
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.
Write drawbacks of Darwin's theory
The famous book "The Origin of Species" was written by ______.
