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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
Explain the concept ‘survival of the fittest’.
According to de-Vries what is saltation?
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
What is meant by a dominant gene?
A gradual change, over a long period, in a form of life is known as :
(a) erosion
(b) evolution
(c) revolution
(d) evaluation
Write a short note based on the information known to you.
Evolution
Short answer question.
Draw a graph to show that natural selection leads to disruptive change.
Short answer question.
Give an example of disrruptive selection
Name any three types of postmating isolating mechanisms.
Variations during mutations of meiotic recombinations are ______.
