Animal kingdom
Asked by Ratna Gautam · 5 years ago
What is exact answer
2 Answers
Petromyzon are marine but migrate for spawning to fresh water. After spawning, within a few days, they die. Their ammocoete larvae, after metamorphosis, return to the ocean.
So, the correct option is 'Petromyzon'.
Aditi Ghuge · 5 years ago
B Petromyzon
Abhi Middepogu · 5 years ago
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