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Q. No.
Assertion(A):
Classification helps in studying all living organisms.
Reason(R):
It groups the organisms into convenient categories based on some easily observable characteristics.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3.
(A) is true, but (R) is false.
4.
(A) is false, but (R) is true.
Subtopic: Diversity in the Living World |
85%
Level 1: 80%+
Hints
| Assertion(A): | All categories together constitute the taxonomic hierarchy. |
| Reason(R): | Category is a part of the overall taxonomic arrangement. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Taxonomy 1: Nomenclature |
Level 3: 35%-60%
Hints
| Assertion(A): | The problem of classification becomes more complex at higher categories comparative to lower categories. |
| Reason(R): | Higher the taxa, more are the characteristics that the members within the taxon share. |
Choices for Assertions and reasons:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Taxonomy 1: Nomenclature |
74%
Level 2: 60%+
Hints
| Assertion (A): | The earliest classifications were based on the ‘uses’ of various organisms. |
| Reason (R): | In early days, human beings needed to find sources for their basic needs of food, clothing and shelter. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Taxonomy 1: Nomenclature |
82%
Level 1: 80%+
Hints
| Assertion (A): | Characterisation, identification, classification and nomenclature are the processes that are basic to taxonomy. |
| Reason (R): | The structural, developmental and ecological information of an organism is important for taxonomic studies. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Taxonomy 1: Nomenclature |
58%
Level 3: 35%-60%
Hints
| Assertion(A): | Animals, mammals, and dogs are all taxa. |
| Reason(R): | They represent taxa at different levels. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Taxonomy 1: Nomenclature |
Level 3: 35%-60%
Hints
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Assertion(A): Wheat, rice, cats, dogs, mammals, plants, animals, etc., are taxa which we use to study the living organisms.
Reason(R): The scientific term for taxa is category.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The scientific term for taxa is category.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Taxonomy 1: Nomenclature |
Level 3: 35%-60%
Hints
| Assertion(A): | We need nomenclature to study living organisms. |
| Reason(R): | Local names vary from place to place which create confusion. |
Choices for Assertions and reasons:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A) |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Taxonomy 1: Nomenclature |
84%
Level 1: 80%+
Hints
| Assertion (A): | Lower the taxa, more are the characteristics that the members within taxon share |
| Reason (R): | Higher the category, lesser is the difficulty of determining the relationship to other taxa at the same level |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Taxonomy 2: Classification up to Genus | Taxonomy 3: From Family to Classification of Some Organisms |
56%
Level 3: 35%-60%
Hints
| Assertion(A): | Species is a genetically closed system. |
| Reason(R): | Because the reproductive isolation constitutes the most important boundary between different species |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
| 3. | (A) is true but (R) is false |
| 4. | Both (A) and (R) are false |
Subtopic: Taxonomy 2: Classification up to Genus |
79%
Level 2: 60%+
Hints
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