Match each item in Column I with one in Column II and select the correct match from the codes given:
Column I Column II
A. Petromyzon and Myxine P. Cyclostome
B. Amphioxus or Lancelet Q. Cephalochordate
C. Ascidia and Salpa R. Urochordate

Codes:
A B C
1. P Q R
2. R Q P
3. P R Q
4. R P Q
Subtopic:  Phylum Chordata | General Introduction: Vertebrates & Agnatha |
 88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

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 |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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 |
 92%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

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 |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch