- 1(current)
Q. No.Flatworms will exhibit all the following except:
| 1. | Bilateral symmetry | 2. | Three embryonic layers |
| 3. | Incomplete digestive system | 4. | Coelom |
Subtopic: Â Phylum Ctenophora & Platyhelminthes |
 80%
From NCERT
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Which of the following is not a feature of Ctenophora?
1. Diploblastic organisms with tissue level of organization
2. Absence of Cnidocytes
3. Presence of internal ciliated comb plates
4. Bio-luminescence well marked in some members
Subtopic: Â Phylum Ctenophora & Platyhelminthes |
 68%
From NCERT
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In Ctenophora:
The correct statements are:
| a: | body bears eight external rows of ciliated comb plates, which help in locomotion. |
| b: | reproduction takes place only by asexual means. |
| c: | digestion is both extracellular and intracellular. |
| d: | sexes are separate. |
| 1. | a and c only | 2. | b and d only |
| 3. | a, b and c only | 4. | a, b and d only |
Subtopic: Â Phylum Ctenophora & Platyhelminthes |
 75%
From NCERT
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Flame cells are excretory structures seen in:
| 1. | Platyhelminthes | 2. | Annelids |
| 3. | Arthropods | 4. | Cnidarians |
Subtopic: Â Phylum Ctenophora & Platyhelminthes |
 93%
From NCERT
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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
1. having two germ layers instead of three
2. lacking a coelom
3. showing bioluminescence
4. having a complete digestive system
Subtopic: Â Phylum Ctenophora & Platyhelminthes |
 82%
From NCERT
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- 1(current)
Q. No.
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