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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
Objection to Darwin's theory of natural selection.
Write a short note based on the information known to you.
Darwin’s theory of natural selection.
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.
State Darwin’s theory of evolution.
Which concept was not included in Charles Darwin’s theory of Natural Selection?
What is the ancient name for all human beings?
Which of the following sequences fits into the organic evolution theory proposed by Charles Darwin and Alfred Wallace?
The selective agent that was responsible for causing the change in peppered moth was ______.
The famous book "The Origin of Species" was written by ______.
Mention four main postulates of Darwin's theory.
