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Q. No.Which of the following is not true for Aschelminthes?
1.
Alimentary canal is complete with a well-developed muscular pharynx.
2.
An excretory tube removes body wastes from the body cavity through the excretory pore.
3.
Sexes are separate (dioecious), i.e., males and females are distinct.
4.
Often females are shorter than males.
Subtopic: Phylum Aschelminthes |
94%
From NCERT
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Match the common names of animals in Column I with their biological names in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Sea Fan | P | Adamsia |
| B | Sea-anemone | Q | Pristis |
| C | Saw fish | R | Gorgonia |
| D | Flying Fish | S | Exocoetus |
| A | B | C | D | |
| 1. | P | R | S | Q |
| 2. | R | P | S | Q |
| 3. | R | P | Q | S |
| 4. | P | R | Q | S |
Subtopic: Phylum Coelenterata | Phylum Chordata | Super Class Pisces & its General Characteristics |
86%
From NCERT
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Ornithorhynchus is a/an:
1. egg-laying mammal
2. vertebrate osmoconformer
3. limbless amphibian
4. pouched mammal
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%
From NCERT
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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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