| 1. | Theodosius Dobzhansky |
| 2. | Ernst Mayr |
| 3. | James Watson |
| 4. | Stephen Jay Gould |
| 1. | Trinomial nomenclature, Aristotle |
| 2. | Binomial nomenclature, Linnaeus |
| 3. | Binomial nomenclature, Darwin |
| 4. | Uninominal nomenclature, Mendel |
| 1. | 0.8 - 1.0 million | 2. | 1.7 - 1.8 million |
| 3. | 7 – 8 million | 4. | 20 – 50 million |
| 1. | Diversity in living word |
| 2. | Population of a species |
| 3. | Habitat |
| 4. | Animal kingdom |
Fundamental elements of taxonomy are
| 1. | Characterisation and classification only |
| 2. | Characterisation, identification and classification only |
| 3. | Characterisation, classification and nomenclature only |
| 4. | Characterisation, identification, classification and nomenclature |
| 1. | X - Generic name, Y - Specific epithet, Z - Carolus Linnaeus |
| 2. | X - Specific epithet, Y - Generic name, Z - R.H. Whittaker |
| 3. | X - Specific epithet, Y - Generic name, Z - Carolus Linnaeus |
| 4. | X - Generic name, Y - Specific epithet, Z - R.H. Whittaker |
| Assertion (A): | There is a need to standardise the naming of living organisms such that a particular organism is known by the same name all over the world |
| Reason (R): | Local names vary from place to place, which creates confusion |
| 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. |
| 1. | Increase |
| 2. | Decrease |
| 3. | Remain same |
| 4. | May increase in polar regions and decrease in tropical regions |
| 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. |