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Mediumneet pyq 2026
+4 / -1
QUESTION: A group of researchers procured some fish-like animals and upon investigation the following characters were observed: A. Endoskeleton was made of cartilage. B. Ectoparasitic; as they were found attached on fish skin with their circular sucking mouth. C. Paired fins and scales were absent, but 7 pairs of gill slits were present. Which of the following species of animals did they consider to fit best with these characters ?
A
Scoliodon sp.
B
Exocoetus sp.
C
Petromyzon sp.
D
Branchiostoma sp.

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