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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.
संबंधित प्रश्न
What is "fitness of an individual" according to Darwin?
The largest unit in which gene flow is possible is :
(1) Organism
(2) Population
(3) Species
(4) Genes
Write a short note based on the information known to you.
Darwin’s theory of natural selection.
Answer the following question.
How did Charles Darwin express 'fitness'?
Natural selection is called ‘survival of the fittest. Which of the following statements best describes an organism?
Who proposed the theory of survival of the fittest?
The famous book "The Origin of Species" was written by ______.
Define the following term:
Speciation
Define the following term:
Natural selection
Match the name of the scientist in Column I with the name of the theory in Column II.
| Column (I) | Column (II) | ||
|---|---|---|---|
| i. | August Weisman | a. | Theory of origin of species |
| ii. | Hugo de Vries | b. | Theory of chemical evolution |
| iii. | Charles Darwin | c. | Theory of continuity of germplasm |
| iv. | Oparin Haldane | d. | Mutation theory |
Choose the correct option.
