The number of correct statements from the given statements, regarding the members of Class Cyclostomata, is:
(a) All living members are ectoparasites on some fishes.
(b) The body bears 6-15 pairs of gill slits for respiration.
(c) They have a sucking and circular mouth without jaws.
(d) Their body is devoid of scales and paired fins.
(e) Cranium and vertebral column are bony.
(f) Circulation is of open type.
   
1. 3 2. 4
3. 5 4. 6
Subtopic:  General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
 62%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

Regarding reproduction in Cyclostomes:
I: They are marine but migrate for spawning to fresh water.
II: After spawning, within a few days, they die. 
III: Their larvae, after metamorphosis, return to the ocean.
 
1. Only II is correct
2. Only I and II are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

Identify the pair of animals that are members of Class Cyclostomata:
1. Petromyzon, Myxine
2. Ascidia, Salpa
3. Pristis, Doliolum
4. Branchiostoma, Balanoglossus
Subtopic:  General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
 92%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

advertisementadvertisement