- 1(current)
Q. No.Consider the two statements:
| Statement I: | Planaria is a free-living flatworm and possesses high regeneration capacity. |
| Statement II: | Hooks and suckers are present in parasitic flatworms. |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Â Phylum Platyhelminthes |
 88%
Level 1: 80%+
Hints
The structure shown in the given figure helps flatworms in:
| 1. | Catching food and digesting it |
| 2. | Exchange of gases |
| 3. | Excretion and Osmoregulation |
| 4. | Regeneration of lost body parts |
Subtopic: Â Phylum Platyhelminthes |
 88%
Level 1: 80%+
Hints
Members of the Phylum Platyhelminthes differ from animals belonging to Phylum Annelida and Phylum Arthropoda in:
| 1. | having two germ layers instead of three |
| 2. | lacking a coelom |
| 3. | showing bioluminescence |
| 4. | having a complete digestive system |
Subtopic: Â Phylum Platyhelminthes |
 68%
Level 2: 60%+
Hints
The following structure is most likely:
| 1. | An attachment organ at the anterior end of tapeworms. |
| 2. | Sensory apparatus at the anterior end of nematodes. |
| 3. | The multiple compound eyes seen in aquatic helminths. |
| 4. | Food storage organ in parasitic platyhelminths. |
Subtopic: Â Phylum Platyhelminthes |
 73%
Level 2: 60%+
Hints
A worm:
In light of the above statements, it will be reasonable to conclude that this worm belongs to Phlyum:
| I: | has dorso-ventrally flattened body |
| II: | is an endoparasite in human beings |
| III: | has hooks and suckers present at its anterior end |
| 1. | Platyhelminthes | 2. | Annelida |
| 3. | Aschelminthes | 4. | Cnidaria |
Subtopic: Â Phylum Platyhelminthes |
 92%
Level 1: 80%+
Hints
Consider the two statements:
| I: | Platyhelminthes are restricted to environments where dehydration is unlikely. |
| II: | They are dorso-ventrally flattened. |
| 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. | Only I is correct |
| 4. | Both I and II are incorrect |
Subtopic: Â Phylum Platyhelminthes |
 69%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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