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प्रश्न
According to the evolutionary theory, the formation of a new species is generally due to ______
पर्याय
sudden creation by nature
accumulation of variations over several generations
clones formed during asexual reproduction
movement of individuals from one habitat to another
उत्तर
accumulation of variations over several generations
Explanation:
According to Darwin's theory of evolution, variations, when accumulated over a long period of time lead to the origin of a new species.
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संबंधित प्रश्न
What factors could lead to the rise of a new species?
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
Only variations that confer an advantage to an individual organism will survive in a population. Do you agree with this statement? Why or why not?
List four factors that could lead to speciation. Which of them cannot be a major factor in the speciation of a self-pollinating plant species?. Give reason to justify your answer.
A plant with two 'small' genes breeds with a plant with two 'tall' genes to produce :
(a) small plants and tall plants in the ratio 1 : 3
(b) all small plants
(c) all tall plants
(d) tall plants and small plants in the ratio 3 : 1
Name the famous book written by Charles Robert Darwin.
What is meant by a species?
Does geographical isolation of individuals of a species lead to the formation of a new species? Provide a suitable explanation for your answer.
The human species has genetic roots in ______
Define speciation according to A.E. Emerson and explain its types giving suitable examples.
