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प्रश्न
Define the following term:
Speciation
उत्तर
The origin of new species by gradual modification is called speciation.
संबंधित प्रश्न
State the two key concept of Darwinian theory.
The theory of Natural Selection was proposed by
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.
Differences between organisms in a species are described as variations. Which of the following would you describe as a continuous variation?
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?
Who proposed the theory of survival of the fittest?
Which one of the following was not explained by Darwinism?
