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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: Darwin's Theory |
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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: Other Theories of Origin of Life | Darwin's Theory |
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Consider the given two statements:
| Assertion(A): | The fitness, according to Darwin, refers ultimately and only to reproductive fitness. |
| Reason(R): | Those who are better fit in an environment, leave more progeny than others. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 4. | (A) is False but (R) is True |
Subtopic: Darwin's Theory |
85%
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Which of the following statements accurately reflects a concept of Darwinism?
| 1. | Variation among individuals of a species is due to use and disuse of organs. |
| 2. | Inheritance of acquired characteristics is the basis of evolution. |
| 3. | Natural selection is the mechanism by which the fittest individuals survive and reproduce, passing on their traits to the next generation. |
| 4. | All species on Earth are unchanging and have remained so since their creation. |
Subtopic: Darwin's Theory |
94%
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Consider the given two statements:
| Assertion(A): | Darwin’s finches represent one of the best examples of adaptive radiation. |
| Reason(R): | Darwin's finches are derived from a single ancestor that arrived in the Galapagos from mainland South America. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 4. | (A) is False but (R) is True |
Subtopic: Darwin's Theory |
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Consider the following statements:
| I: | Nature selects for fitness. |
| II: | Fitness is based on characteristics that are inherited. |
| III: | Fitness is the end result of the ability to adapt and get selected by nature. |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II, and III |
Subtopic: Darwin's Theory |
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Consider the given two statements:
| Assertion (A): | Variations on which natural selection acts, arise as a result of random mutations. |
| Reason (R): | A new variation may, or may not, be adaptive. |
| 1. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 2. | Both (A) and (R) are True and (R) correctly explains (A). |
| 3. | (A) is False and (R) is also False. |
| 4. | (A) is True but (R) is False. |
Subtopic: Darwin's Theory |
53%
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