Q. No.Radially symmetrical animals:
1. Are all triploblastic
2. Tend to be sessile and passively floating
3. Have a definite head and a brain
4. Have an anterior and a posterior end
1. Are all triploblastic
2. Tend to be sessile and passively floating
3. Have a definite head and a brain
4. Have an anterior and a posterior end
Ascaris is characterized by:
1. Presence of true coelom but absence of metamerism
2. Presence of true coelom and metamerism
3. Absence of true coelom but presence of metamerism
4. Presence of neither true coelom nor metamerism
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Identify the chordates in which the notochord persists in the adults?
| 1. | Tunicates | 2. | Lancelets |
| 3. | Cyclostomata | 4. | Bony fishes |
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Which of the following is not a feature of Porifera?
1. Exclusively marine animals
2. Presence of a water transport or a canal system
3. Sexes are not separate
4. Internal fertilization and indirect development
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Which of the following is not a feature of Cnidaria?
1. Radially symmetrical animals
2. Gastro-vascular cavity with a single opening
3. Presence of cells that contain stinging capsules
4. Some have asexually reproducing medusa
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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
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Identify the incorrect statement regarding Osteichthyes?
| 1. | Gills with operculum |
| 2. | Skin covered by placoid scales |
| 3. | Presence of swim bladder |
| 4. | Mostly oviparous |
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In Amphibia:
| I: | Skin is moist without scales |
| II: | A tympanum represents the ear |
| III: | Fertilization is external |
| 1. | Only I and II are correct | 2. | Only I and III are correct |
| 3. | Only II and III are correct | 4. | I, II, and III are correct |
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A water vascular system is characteristically present in:
| 1. | Annelids | 2. | Porifers |
| 3. | Echinoderms | 4. | Cartilaginous fishes |
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“Radula”, a rasping tongue like organ is seen in many:
1. Mollusks
2. Flatworms
3. Roundworms
4. Arthropods
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