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प्रश्न
Define Speciation.
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उत्तर
The process of formation of a new species from the pre-existing species is called speciation.
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संबंधित प्रश्न
List three main factors responsible for the speciation and briefly describe each one of them
List four factors responsible for speciation.
Name one reptile in given case where higher incubation temperature leads to the development of female progeny.
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 an animal having rudimentary eyes.
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to same species?
The theory of evolution of species by natural selection was given by ______
Which of the following statement is incorrect with respect to variations?
(a) all variations in a species have equal chance of survival
(b) change in genetic composition results in variations
(c) selection of variations by environmental factors forms the basis of evolutionary process
(d) variations are the minimum in asexual reproduction
State and define three factors responsible for the rise of a new species.
Despite differing morphological characters and gene frequencies, the five main racial groups of human beings are members of which same species?
