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Q. No.About 65 mya, the dinosaurs suddenly disappeared from the earth. The reason for their sudden disappearance may be:
(a)
Climatic changes killed them.
(b)
Most of them evolved into birds.
1. Only (a)
2. Only (b)
3. The truth may live in between (a) and (b).
4. Neither (a) nor (b).
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
85%
From NCERT
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How many of the given statements are correct regarding the timeline of evolution of different life forms on Earth?
1. 3
2. 4
3. 5
4. 6
| I: | By the time of 500 mya, invertebrates were formed and active. |
| II: | Jawless fish probably evolved around 350 mya. |
| III: | Sea weeds and few plants existed probably around 320 mya. |
| IV: | The first organisms that invaded land were plants. |
| V: | Lobefins evolved into the first amphibians. |
| VI: | The amphibians evolved into reptiles. |
1. 3
2. 4
3. 5
4. 6
Subtopic: Evolution Prior to Ape Man: 1 |
77%
From NCERT
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Evolution by anthropogenic action:
| 1. | is a determinist process. |
| 2. | only leads to evolution of species that are useful to humans. |
| 3. | usually is faster than the natural process. |
| 4. | is not at all related to mutations |
Subtopic: Palentological Evidences of Evolution |
61%
From NCERT
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Consider the given two statements
| Assertion (A): | Dark melanic peppered moth survive better in polluted environments. |
| Reason (R): | In polluted areas, dark melanic moths are able to camouflage themselves. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Palentological Evidences of Evolution |
94%
From NCERT
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Embryological support for evolution, proposed by Ernst Heckel, was disapproved by:
| 1. | Charles Lyell | 2. | Georges Cuvier |
| 3. | Charles Darwin | 4. | von Baer |
Subtopic: Concept of Organic Evolution: Evidence: 3 |
92%
From NCERT
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Doing extensive fieldwork in the Malay Archipelago, which scientist independently conceived the theory of evolution through natural selection?
1. Alfred Russel Wallace
2. Charles Lyell
3. Georges Cuvier
4. Jean Baptiste Lamarck
1. Alfred Russel Wallace
2. Charles Lyell
3. Georges Cuvier
4. Jean Baptiste Lamarck
Subtopic: Summary of Darwin's Theory |
92%
From NCERT
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Identify the correct statements:
| a. | Homology indicates common ancestry. |
| b. | Sweet potato and potato are examples for homology. |
| c. | Analogous structures are a result of convergent evolution. |
| d. | Vertebrate hearts or brains are analogous structures. |
| 1. | a and b only | 2. | c and d only |
| 3. | a and c only | 4. | b and d only |
Subtopic: Palentological Evidences of Evolution |
89%
From NCERT
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Which of the following periods in geological time scale is not included in the Palaeozoic era?
1. Silurian
2. Cretaceous
3. Devonian
4. Carboniferous
1. Silurian
2. Cretaceous
3. Devonian
4. Carboniferous
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
74%
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In 1938, a fish caught in South Africa which was thought to be extinct, was a:
| 1. | Jawless fish | 2. | Armoured fish |
| 3. | Lobe finned fish | 4. | Ray finned fish |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
74%
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If we say that the embryos of reptiles, birds, and mammals look very similar during their early stages of development, this would suggest that these organisms:
1. have stopped evolving
2. have a common ancestor
3. live in the same types of environments
4. will get extinct if the environment changes
1. have stopped evolving
2. have a common ancestor
3. live in the same types of environments
4. will get extinct if the environment changes
Subtopic: Embryological Evidence of Evolution |
93%
From NCERT
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