- 1(current)
Q. No.A complete digestive system is present in the members of all the following phyla of Animal Kingdom except:
| I. | Platyhelminthes | II. | Mollusca | III. | Annelida |
| 1. | Only I | 2. | Only II |
| 3. | Only II and III | 4. | I, II, and III |
Subtopic: Â Basis of Classification |
 74%
From NCERT
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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: Â Basis of Classification |
 92%
From NCERT
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In metameric segmentation:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | The body is divided into segments only externally. |
| II: | There is a serial repetition of at least some organs. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Â Basis of Classification |
 68%
From NCERT
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The notochord:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | is derived from embryonic mesoderm. |
| II: | is present on the ventral side during embryonic development in chordates. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Â Basis of Classification |
 73%
From NCERT
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- 1(current)
Q. No.
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