Which of the following statements is true about cyclostomes?
1. They possess a jaw and paired fins.
2. They are endoparasites on fishes.
3. They have a cartilaginous skeleton and are devoid of jaws and paired fins.
4. Cyclostomes are exclusively found in marine environments.
Subtopic:  General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
 70%
From NCERT
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Choose the correct statement.
1. All mammals are viviparous
2. All cyclostomes do not possess jaws and paired fins
3. All reptiles have a three-chambered heart
4. All pisces have gills covered by an operculum

Subtopic:  General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
 89%
From NCERT
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital