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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
Why are traits acquired during the life-time of an individual not inherited?
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
In evolutionary terms, we have more in common with
A black mouse mates with a brown mouse, and all the offsprings are black.
(a) Why are no brown offsprings produced?
(b) If two of the black offsprings mate with each other what kind of offspring would you expect and in what proportions? Give reason for your answer.
Short answer question.
Draw a graph to show that natural selection leads to disruptive change.
Short answer question.
What is disruptive selection?
Name any three types of premating isolating mechanisms.
Explain stabilizing, directional and disruptive selection with examples.
Genetic drift is change of:
Which one of the following was not given by Darwin's theory of evolution?
