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Q. No.Match the following group of organisms with their respective distinctive characteristics and select the correct option :
| Organisms | Characteristics | ||
| (a) | Platyhelminthes | (i) | Cylindrical body with no segmentation |
| (b) | Echinoderms | (ii) | Warm blooded animals with direct development |
| (c) | Hemichordates | (iii) | Bilateral symmetry with incomplete digestive system |
| (d) | Aves | (iv) | Radial symmetry with indirect development |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
Subtopic: Phylum Ctenophora | Phylum Echinodermata | Phylum Hemichordata | Study of Aves & Mammals |
86%
Level 1: 80%+
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Which of the following features is primarily associated with the phylum Echinodermata and not found in other animal phyla?
| 1. | Radial symmetry in adults |
| 2. | Water vascular system for locomotion |
| 3. | Presence of a closed circulatory system |
| 4. | Development directly into adult form without a larval stage |
Subtopic: Phylum Echinodermata |
83%
Level 1: 80%+
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Q. No.
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