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Q. No.What would be true for an animal that exhibits the kind of body symmetry shown in the given diagram?
I:
This is seen in sponges, cnidarians, ctenophores and larval echinoderms.
II:
This type of body symmetry is generally seen in animals which move actively in their environment.
1.
Only I
2.
Only II
3.
Both I and II
4.
Neither I nor II
Subtopic: Basis of Classification |
53%
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Which of the following will be true for both animals with body plan A and B as shown in the given figure?
| 1. | Body will be bilaterally symmetrical |
| 2. | Muscle will be well developed |
| 3. | A true coelom will be present |
| 4. | Both will have cells organized into tissues and heterotrophic nutrition |
Subtopic: Basis of Classification |
65%
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Given below is the schematic representation of the life cycle of Obelia, a cindarian. Consider the given two statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. I is incorrect and II is correct
| I: | This type of life cycle is called as metagenesis and it is a sort of alternation of generation. |
| II: | Polyps in the life cycle of cnidarians are haploid and medusae are diploid. |
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. I is incorrect and II is correct
Subtopic: Phylum Coelenterata |
58%
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Consider the given two statements regarding the water flow through the bodies of sponges as shown in the diagram.
1. I is correct and II is incorrect.
2. I is incorrect and II is correct.
3. I is correct and II is also correct.
4. I is incorrect and II is also incorrect.
| I: | Most sponges work rather like chimneys: they take in water at the bottom and eject it from the osculum ("little mouth") at the top. |
| II: | The inner surface is covered with choanocytes where the wave-like motion of the whip-like flagella drives water through the sponge's body. |
2. I is incorrect and II is correct.
3. I is correct and II is also correct.
4. I is incorrect and II is also incorrect.
Subtopic: Phylum Porifera |
72%
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The following structure is most likely:
1. An attachment organ at the anterior end of tapeworms.
2. Sensory apparatus at the anterior end of nematodes.
3. The multiple compound eyes seen in aquatic helminths.
4. Food storage organ in parasitic platyhelminths.
1. An attachment organ at the anterior end of tapeworms.
2. Sensory apparatus at the anterior end of nematodes.
3. The multiple compound eyes seen in aquatic helminths.
4. Food storage organ in parasitic platyhelminths.
Subtopic: Phylum Ctenophora & Platyhelminthes |
74%
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The diagram shows an organism with the following features:
I. Presence of comb plates on the surface.
II. Bioluminescence
This animal can be:
I. Presence of comb plates on the surface.
II. Bioluminescence
This animal can be:
| 1. A sponge | 2. A Cnidarian |
| 3. A Ctenophore | 4. A flatworm |
Subtopic: Phylum Ctenophora & Platyhelminthes |
86%
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Given below is a figure showing the worms which are the most common cause of helminthic infestation in the world.
1. A is male Ascaris and B is female Ascaris
2. A is female Ascaris and B is male Ascaris
3. A is male Wuchereria and B is female Wuchereria
4. A is female Wuchereria and B is male Wuchereria
1. A is male Ascaris and B is female Ascaris
2. A is female Ascaris and B is male Ascaris
3. A is male Wuchereria and B is female Wuchereria
4. A is female Wuchereria and B is male Wuchereria
Subtopic: Phylum Aschelminthes |
88%
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Given below is the body plan of a hypothetical generalized mollusc. Consider the given two statements.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| A: | I is found in all the molluscs. |
| B: | II is a cavity used for egestion, excretion and respiration. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Phylum Mollusca |
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In the given diagram of the body plan of an insect, identify the parts A-F:
| A | B | C | D | E | F | |
| 1. | Blood vessel | Nerve cord | Trachea | Spiracles | Crop | Hearts |
| 2. | Blood vessel | Nerve cord | Trachea | Spiracles | Oesophagus | Hearts |
| 3. | Nerve cord | Blood vessel | Trachea | Spiracles | Crop | Ostia |
| 4. | Nerve cord | Blood vessel | Stomo- chord |
Ostia | Oesophagus | Spiracles |
Subtopic: Phylum Arthropoda |
62%
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Given below is a diagram showing the water vascular system of an Echinoderm.
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: | It is a hydraulic system used by echinoderms for locomotion, food and waste transportation, and respiration. |
| II: | The system is composed of canals connecting numerous tube feet. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Phylum Echinodermata |
82%
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