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Q. No.How many of the given features will be correct for echinoderms?
I:
All are marine.
II:
The adults are radially symmetrical.
III:
An excretory system is absent.
IV:
Development is indirect with free-swimming larva.
1. 1
2. 2
3. 3
4. 4
Subtopic: Phylum Echinodermata |
78%
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If Arthropoda is the largest phylum of Animalia, which of the following is the second largest phylum of Animalia?
1. Chordata
2. Echinodermata
3. Mollusca
4. Platyhelminthes
1. Chordata
2. Echinodermata
3. Mollusca
4. Platyhelminthes
Subtopic: Phylum Mollusca |
98%
From NCERT
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Which animals are diploblastic and show radial symmetry but lack cnidoblasts?
1. Cnidarians
2. Ctenophores
3. Echinoderms
4. Hemichordates
1. Cnidarians
2. Ctenophores
3. Echinoderms
4. Hemichordates
Subtopic: Phylum Ctenophora & Platyhelminthes |
91%
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On what basis are animals classified in the animal kingdom?
1. Presence or absence of a coelom.
2. Type of respiratory system.
3. Habitat and niche.
4. Color and size of the animal.
1. Presence or absence of a coelom.
2. Type of respiratory system.
3. Habitat and niche.
4. Color and size of the animal.
Subtopic: Basis of Classification |
88%
From NCERT
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Consider the given two statements:
| Assertion (A): | Echinoderms have a water vascular system. |
| Reason (R): | The water vascular system is used for locomotion, capturing food, and respiration. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Phylum Echinodermata |
58%
From NCERT
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Which statement accurately describes a feature of amphibians?
| 1. | Amphibians are exclusively terrestrial and breathe through lungs. |
| 2. | Amphibians undergo metamorphosis from a larval stage to an adult form. |
| 3. | Amphibians have scales and typically lay amniotic eggs. |
| 4. | All amphibians have a four-chambered heart. |
Subtopic: Study of Amphibians |
87%
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Consider the given two statements:
| Assertion (A): | Roundworms are considered pseudocoelomates. |
| Reason (R): | They have a body cavity not lined with mesoderm. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Phylum Aschelminthes | Basis of Classification |
57%
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How many of the given statements are correct?
1. 1
2. 2
3. 3
4. 4
| 1. | Cnidaria and ctenophora are radially symmetrical organisms. |
| 2. | Platyhelminthes are acoelomates. |
| 3. | Aschelminthes are pseudocoelomates. |
| 4. | Annelida are true coelomates. |
2. 2
3. 3
4. 4
Subtopic: Basis of Classification |
88%
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Which statement correctly relates to body symmetry with examples in the animal kingdom?
| 1. | Radial symmetry is found in annelids, allowing them to move in any direction. |
| 2. | Bilateral symmetry is present in cnidarians like jellyfish. |
| 3. | Bilateral symmetry is characteristic of vertebrates like humans, allowing for directional movement. |
| 4. | Asymmetry is commonly seen in vertebrates, providing varied evolutionary advantages. |
Subtopic: Basis of Classification |
86%
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Which of the following statements is incorrect about the phylum Arthropoda?
| 1. | Arthropods have an open circulatory system. |
| 2. | Arthropods exhibit bilateral symmetry. |
| 3. | All arthropods possess jointed appendages. |
| 4. | Arthropods possess a segmented body plan with a pseudocoelom. |
Subtopic: Phylum Arthropoda |
95%
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