Q. A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is :
A) Petromyzon
B) Eptatretus
C) Myxine
D) Neomyxine
Explanation
[Solution] The lamprey Petromyzon is anadromous, with an ammocoete larva. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.