Q. No.Which of the following characteristics is used as a basis for the classification of animals into different phyla?
| 1. | Presence of feathers |
| 2. | Mode of reproduction |
| 3. | Type of respiratory system |
| 4. | Body plan and symmetry |
Subtopic: Basis of Classification |
90%
Level 1: 80%+
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On what basis are animals classified in the animal kingdom?
| 1. | Presence or absence of a coelom. |
| 2. | Type of respiratory system. |
| 3. | Habitat and niche. |
| 4. | Color and size of the animal. |
Subtopic: Basis of Classification |
88%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | All members of Animalia are multicellular. |
| Statement II: | All members of Animalia exhibit the same pattern of organisation of cells. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Basis of Classification |
76%
Level 2: 60%+
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Identify the correct statements:
| I: | The digestive system in Platyhelminthes has only a single opening to the outside of the body that serves as both mouth and anus, and is hence called incomplete. |
| II: | In open type circulation, the blood is pumped out of the heart and the cells and tissues are directly bathed in it. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Basis of Classification |
89%
Level 1: 80%+
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The type of circulatory system, in which blood is circulated through a series of vessels [arteries, veins and capillaries] and never leaves the network of blood vessels, is called as:
| 1. | An open circulatory system | 2. | A closed circulatory system |
| 3. | A lymphatic system | 4. | A portal circulation |
Subtopic: Basis of Classification |
81%
Level 1: 80%+
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Regarding bilateral symmetry:
In light of the above statements, choose the most appropriate answer from the options given below:
| I: | Bilateral symmetry is the body plan where the body of the animal can be divided into two identical halves through any plane passing through the central axis of the body. |
| II: | While Ctenophores and adult Echinoderms have bilateral symmetry, Annelida and Arthropods have radial symmetry. |
| 1. | Statement I is correct but Statement II is incorrect. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Basis of Classification |
67%
Level 2: 60%+
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Consider the given two statements:
| Statement I: | Coelenterates, ctenophores and echinoderms have bilateral symmetry as larvae and radial symmetry as adults. |
| Statement II: | Animals like annelids and arthropods exhibit bilateral symmetry. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Basis of Classification |
82%
Level 1: 80%+
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The triploblastic animals differ from the diploblastic animals in having:
| 1. | Ectoderm | 2. | Mesoderm |
| 3. | Endoderm | 4. | Gastroderm |
Subtopic: Basis of Classification |
95%
Level 1: 80%+
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Consider the two statements:
| Statement I: | An undifferentiated layer, mesoglea, is present in between the ectoderm and the mesoderm in diploblastic organisms. |
| Statement II: | A third germinal layer, endoderm, in between the ectoderm and mesoderm, is present in triploblastic animals. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Basis of Classification |
55%
Level 3: 35%-60%
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Consider the given features:
| A: | Body cavity lined by mesoderm |
| B: | The mesoderm present as scattered pouches in between the ectoderm and the endoderm |
Select the correct option of animals having the features A and B:
| A | B | |
| 1. | Aschelminthes | Annelids |
| 2. | Platyhelminthes | Ctenophores |
| 3. | Arthropods | Molluscs |
| 4. | Arthropods | Aschelminthes |
Subtopic: Basis of Classification |
85%
Level 1: 80%+
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