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Q. No.Ornithorhynchus is a/an:
1. egg-laying mammal
2. vertebrate osmoconformer
3. limbless amphibian
4. pouched mammal
Subtopic: Study of Aves & Mammals |
91%
From NCERT
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Subtopic: Super Class Pisces & its General Characteristics |
85%
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A radula is present in many members of the phylum:
| 1. | Mollusca | 2. | Arthropoda |
| 3. | Annelida | 4. | Echinodermata |
Subtopic: Phylum Mollusca |
96%
From NCERT
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The given figure is from your textbook and shows the classification of organisms with true coelom into various phyla. What would be peculiar for organisms shown by an * mark?
| 1. | They are the only organisms to possess an endoskeleton. |
| 2. | They exhibit radial or bilateral symmetry depending on the stage. |
| 3. | They are the only animals exclusively inhabiting marine water. |
| 4. | Bioluminescence is well marked in these animals. |
Subtopic: Basis of Classification |
89%
From NCERT
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The given figure shows a/an:
| 1. | rag worm, an annelid |
| 2. | round worm, a nematode |
| 3. | flat worm, a platyhelminth |
| 4. | acorn worm, a hemichordate |
Subtopic: Phylum Hemichordata |
64%
From NCERT
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Anopheles, Culex and Aedes are:
1. Only I and II are correct
2. Only III and IV are correct
3. Only I and III are incorrect
4. Only II and IV are incorrect
| I: | important vectors for some human pathogens. |
| II: | mosquitoes belonging to Arthropoda. |
| III: | arthropods with closed circulatory system. |
| IV: | arthropods lacking jointed appendages. |
1. Only I and II are correct
2. Only III and IV are correct
3. Only I and III are incorrect
4. Only II and IV are incorrect
Subtopic: Phylum Arthropoda |
91%
From NCERT
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The number of animals having bilateral symmetry and a true coelom from the list given in the box will be:
1. 4
2. 5
3. 6
4. 7
| Fasciola, Pila, Chaetopleura, Ancylostoma, Saccoglossus, Meandrina, Hirudinaria, Labeo, Ichthyophis |
1. 4
2. 5
3. 6
4. 7
Subtopic: Basis of Classification |
51%
From NCERT
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Identify the option where all the animals given in Column I share the characters given in Column II:
| Column I | Column II | |
| 1. | Ancylostoma, Taenia | Pseudocoelom, Bilateral symmetry |
| 2. | Delphinus, Camelus | Mammary glands, Hair |
| 3. | Octopus, Dentalium | Closed circulation, segmented body |
| 4. | Obelia, Hydra | Metagenesis, Diploblastic |
Subtopic: Basis of Classification:I |
61%
From NCERT
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You discover an organism and observe that it shows the presence of the following characteristics:
You conclude that this must be an arthropod but want to get more confident by observing another feature. Which of the following, if present, will strengthen your argument?
| A: | Bilateral symmetry |
| B: | Body covered with a plate like exoskeleton |
| C: | Legs with joints and wings |
You conclude that this must be an arthropod but want to get more confident by observing another feature. Which of the following, if present, will strengthen your argument?
| 1. | Closed circulation |
| 2. | Lack of a true coelom |
| 3. | Ammonotelic excretion |
| 4. | Body divided into head, thorax and abdomen segments |
Subtopic: Phylum Arthropoda | Basis of Classification |
93%
From NCERT
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The correct statements regarding cyclostomes will be:
1. Only (a) and (b)
2. Only (b) and (c)
3. Only (a) and (d)
4. Only (c) and (d)
| (a) | All living members of the class Cyclostomata are endoparasites in mammals. |
| (b) | Cyclostomes have a sucking and circular mouth without jaws. |
| (c) | Their body is devoid of scales and paired fins. |
| (d) | Cranium and vertebral column are bony. |
2. Only (b) and (c)
3. Only (a) and (d)
4. Only (c) and (d)
Subtopic: General Introduction: Vertebrates & Agnatha |
89%
From NCERT
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