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Q. No.Identify the incorrectly matched pair:
1.
Echinodermata
Water vascular system
2.
Hemichordata
Stomochord
3.
Cyclostomata
Cartilaginous jaw
4.
Cephalochordata
Notochord persistent throughout life
Subtopic: General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
82%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.
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: Basis of Classification |
65%
Level 2: 60%+
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The collared flagellated cell shown in the given figure is called as a:
| 1. | Choanocyte and helps sponges in movement of water through their canal system |
| 2. | Choanocyte and helps sponges in reproducing asexually under favourable conditions |
| 3. | Cnidocyte and helps sponges in catching their prey by paralyzing them |
| 4. | Colloblast and helps sponges in sticking to a surface |
Subtopic: Phylum Porifera |
66%
Level 2: 60%+
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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: Phylum Ctenophora |
70%
Level 2: 60%+
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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: Phylum Platyhelminthes |
87%
Level 1: 80%+
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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: Phylum Platyhelminthes |
74%
Level 2: 60%+
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Metamerism evolved for the first time in the members of the Phylum:
| 1. | Annelida | 2. | Platyhelminthes |
| 3. | Aschelminthes | 4. | Chordata |
Subtopic: Phylum Annelida |
84%
Level 1: 80%+
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Unlike Arthropods, Annelids:
| 1. | have a true coelom lined by embryonic mesoderm |
| 2. | have a closed circulatory system |
| 3. | do not reproduce by sexual methods |
| 4. | have a complete digestive system |
Subtopic: Phylum Annelida |
74%
Level 2: 60%+
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Which of the following is not an Echinoderm?
| 1. | Sea Urchin | 2. | Sea lily |
| 3. | Brittle star | 4. | Brain coral |
Subtopic: Phylum Echinodermata |
81%
Level 1: 80%+
Hints
Consider the given two statements:
| Statement 1: | Hemichordates were earlier considered as a sub-phylum under Phylum Chordata but are now placed separately in a phylum under non-Chordata. |
| Statement 2: | Hemichordates have a rudimentary structure in the collar region called stomochord, a structure homologous to the notochord. |
| 1. | Both Statement 1 and Statement 2 are correct but Statement 2 does not explain Statement 1. |
| 2. | Statement 1 is correct and Statement 2 is incorrect. |
| 3. | Both Statement 1 and Statement 2 are incorrect. |
| 4. | Both Statement 1 and Statement 2 are correct and Statement 2 explains Statement 1. |
Subtopic: Phylum Hemichordata |
Level 4: Below 35%
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