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प्रश्न
What is a connecting link?
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उत्तर
These are fossil forms transitional or intermediate between two groups of organisms. It shows some characters to both the groups. Thus, it indicates the evolutionary line Seymouria (between amphibians and reptiles). e.g., Archaeopteryx (between reptiles and birds).
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संबंधित प्रश्न
List three distinguishing features, in tabular form, between acquired traits and the inherited traits.
Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
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A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced.
(a) State whether the change in colour of beetle is a process of evolution or not.
(b) Can the new colour of green beetle be passed on to its next generations?
(c) What will be the advantage (if any) of the green colour to the beetle?
(d) State whether the production of green colour involved a change in genetic material or not.
Define Organic evolution.
Name any three types of postmating isolating mechanisms.
What is chromosomal aberration? Give any two types of aberrations found in the population.
The idea of mutation was brought forth by:
Which one of the following was not given by Darwin's theory of evolution?
