I: | Both words in a biological name, when handwritten, are separately underlined. |
II: | Systematics takes into account evolutionary relationship between organisms. |
III: | In case of animals, classes with a few similar characters are assigned to a higher category called Division. |
IV: | Higher the taxonomic category, higher is the ease of determining the relationship to other taxa at the same level. |
Statement I: | Taxonomists have been able to identify a vast majority of species present on Earth. |
Statement II: | The number of species that are known and described range between 1.7-1.8 million. |
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. |
Assertion (A): | Higher the taxonomic category, greater is the difficulty of determining the relationship to other taxa at the same level. |
Reason (R): | Lower the taxa, more are the characteristics that the members within the taxon share. |
1. | (A) is True and (R) is False. |
2. | Both (A) and (R) are True and (R) is a correct explanation of (A). |
3. | Both (A) and (R) are True but (R) is not a correct explanation of (A). |
4. | (A) is False and (R) is True. |
Statement I: | Systematics takes into account evolutionary relationships between organisms. |
Statement II: | Taxonomy takes into account only some easily observable external characters of organisms. |
Statement I: | Taxa can indicate categories at very different levels. |
Statement II: | Taxonomic groups/categories are not distinct biological entities but are merely morphological aggregates. |
1. | Statement I is correct and Statement II is also correct |
2. | Statement I is incorrect and Statement II is correct |
3. | Statement I is incorrect and Statement II is also incorrect |
4. | Statement I is correct and Statement II is incorrect |
Consider the given two statements:
I. | Living state and metabolism are synonymous. |
II. | Cellular organization with metabolism is the defining feature of life. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
(i) | Filamentons fungi |
(ii) | All algae |
(iii) | Protonema of mosses |
Which of the following characters, are defining features
of all living organisms?
(A) | Growth from inside |
(B) | Sexual reproduction |
(C) | Metabolism |
(D) | Response to stimuli |
(E) | Cellular organisation |
1. Only (C), (D) and (E)
2. Only (A) and (B)
3. Only (B), (C) and (D)
4. All except (B)
Assertion (A): | Properties of cellular organelles are not present in the molecular constituents of the organelle. |
Reason (R): | Properties of tissues are present in the constituent cells. |
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. |