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Q. No.Which of the following was not a conclusion drawn by Charles Darwin based on observations made during a sea voyage in a sailing ship called H.M.S. Beagle around the world?
| 1. | Existing living forms share similarities to varying degrees not only among themselves but also with life forms that existed millions of years ago. |
| 2. | There had been extinctions of different life forms in the years gone by just as new forms of life arose at different periods of the history of the earth. |
| 3. | There has been a sudden and dramatic evolution of life forms. |
| 4. | Those characteristics which enable some to survive better in natural conditions (climate, food, physical factors, etc.) would outbreed others that are less endowed to survive under such natural conditions. |
Subtopic: Â Darwin's Theory |
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Consider the two statements:
| I: | Fitness, according to Darwin, refers ultimately and only to reproductive fitness. |
| II: | Those who are a better fit in an environment, leave more progeny than others. |
| 1. | Both Statement I and Statement II are correct and Statement II explains Statement I. |
| 2. | Statement I is correct and Statement II is incorrect. |
| 3. | Statement I is incorrect and Statement II is correct. |
| 4. | Both Statement I and Statement II are correct but Statement II does not explain Statement I. |
Subtopic: Â Darwin's Theory |
 89%
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Name the naturalist who worked in the Malay Archipelago and had also come to conclusions similar to Darwin around the same time:
| 1. | Georges Cuvier | 2. | Lyell |
| 3. | Hugo de Vries | 4. | Alfred Russell Wallace |
Subtopic: Â Other Theories of Origin of Life |Â Darwin's Theory |
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The given figure shows the adaptive radiation of marsupials of Australia. What is correct regarding adaptive radiation?
| I: | It is the process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats). |
| II: | When more than one adaptive radiation appeared to have occurred in an isolated geographical area (representing different habitats), one can call this divergent evolution. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Â Darwin's Theory |
 75%
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Q. No.
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