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Q. No.Which of the following animals belongs to the subphylum Vertebrata?
1. Doliolum
2. Branchistoma
3. Petromyzon
4. Salpa
Subtopic: General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
78%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Obelia | Metagenesis |
| 2. | Planaria | Free living with high regeneration capacity |
| 3. | Ancylostoma | Acoelomate |
| 4. | Nereis | Parapodia |
Subtopic: Phylum Coelenterata | Phylum Ctenophora | Phylum Aschelminthes | Phylum Annelida |
85%
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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 |
76%
From NCERT
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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%
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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 |
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In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are correct?
| Genus Name | Two Characters | Phylum | ||
| 1. | Pila | (i) (ii) |
Body segmented Mouth with Radula |
Mollusca |
| 2. | Asterias | (i) (ii) |
Spiny skinned Water Vascular System |
Echinodermata |
| 3. | Sycon | (i) (ii) |
Pore bearing Canal system |
Porifera |
| 4. | Periplaneta | (i) (ii) |
Jointed appendages Chitinous exoskeleton |
Arthropoda |
Subtopic: Phylum Mollusca |
83%
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Notochord is:
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: | an endodermally derived rod-like structure. |
| II: | formed on the dorsal side during embryonic development in some animals. |
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: Phylum Chordata |
71%
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The type of circulatory system in which the blood is pumped out of the heart and the cells and tissues are directly bathed in it is found in all of the following except:
| 1. | Arthropods | 2. | Hemichordates |
| 3. | Most molluscs | 4. | Annelids |
Subtopic: Basis of Classification |
66%
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The cell shown in the given figure defines animals belonging to:
1. Porifera
2. Cnidaria
3. Platyhelminthes
4. Urochordates
1. Porifera
2. Cnidaria
3. Platyhelminthes
4. Urochordates
Subtopic: Phylum Coelenterata |
95%
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Animals can be categorised on the basis of their symmetry. Which of the following statements are correct?
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | Sponges are mostly asymmetrical. |
| II: | Coelenterates, ctenophores and adult echinoderms have radial symmetry. |
| III: | Annelids and arthropods exhibit bilateral symmetry. |
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora | Phylum Annelida | Phylum Arthropoda | Basis of Classification |
90%
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