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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
Give any two distinctive features of Dryopithecus.
In what way are analogous organs evidence for evolution?
"Only variations that confer an advantage to an individual organism will survive in a population". Do you agree with this statement? Give reason for your answer.
Scientists believe that all life originated in :
(a) the sea
(b) the soil
(c) the ground
(d) the air
| A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced. |
- State whether the change in colour of beetle is a process of evolution or not.
- Can the new colour of green beetle be passed on to its next generations?
- What will be the advantage (if any) of the green colour to the beetle?
- State whether the production of green colour involved a change in genetic material or not.
Transfer of a part of chromosome or set of genes to a non-homologous chromosome is called ________.
Explain stabilizing, directional and disruptive selection with examples.
The idea of mutation was brought forth by:
Theory of inheritance of acquired character was given by:
The chronological order of human evolution from early to recent stages is ______.
