- 1(current)
Q. No.How many of the given statements are correct for cyclostomes?
1. 3
2. 4
3. 5
4. 6
| I: | All living members are ectoparasites on some fishes. |
| II: | They have an elongated body bearing 6-15 pairs of gill slits for respiration. |
| III: | They have a sucking and circular mouth without jaws. |
| IV: | Their body has scales and paired fins. |
| V: | Circulation is of open type. |
| VI: | Cyclostomes are fresh water animals but migrate for spawning to marine water. |
2. 4
3. 5
4. 6
Subtopic: Phylum Chordata |
52%
Level 3: 35%-60%
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Please attempt this question first.
Identify the incorrectly matched pair:
| Animals | Feature present in both | |
| 1. | Balanoglossus and Pinctada | Open circulatory system |
| 2. | Branchiostoma and Ascidia | Persistent notochord |
| 3. | Aplysia and Pheretima | True coelom |
| 4. | Gorgonia and Pennatula | Cnidoblasts |
Subtopic: Phylum Chordata |
60%
Level 2: 60%+
Hints
Links
Select the option which shows the correct matching of animal with excretory organs and excretory product:
| Animal | Excretory organs | Excretory product | |
| 1. | Labeo (Rohu) | Nephridial tubes | Ammonia |
| 2. | Salamander | Kidney | Urea |
| 3. | Peacock | Kidney | Urea |
| 4. | Housefly | Renal tubules | Uric acid |
Subtopic: Phylum Arthropoda | Phylum Chordata |
Level 3: 35%-60%
NEET - 2013
Hints
Diagrams (A, B, C and D) of four different animals are given below. Which one of the following option identifies the animal, its phylum and one of its characters correctly ?
| Animal | Phylum | Character | |
| B | Rana | Amphibia | 3 – chambered heart |
| C | Asterias | Echinodermata | Water canal system |
| A | Aurelia | Coelenterata | Cnidoblast cells |
| D | Naja | Chordata | Non-poisonous snake |
1. B
2. C
3. A
4. D
Subtopic: Phylum Coelenterata | Phylum Echinodermata | Phylum Chordata | Study of Amphibians |
Level 3: 35%-60%
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- 1(current)
Q. No.
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