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A jawless fish which lays eggs in fresh ...

A jawless fish which lays eggs in fresh water and whose ammocoete larve after metamorphosis return to ocean is

A

Eptatretus

B

Myxine

C

Neomyxine

D

Petromyzon

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The correct Answer is:
D
Petromyzon (the lamprey) belongs to the section Agnatha of the subphylum-Vertebrata . They have long, greenish brown , cylindrical body with smooth scaleless, slimy skin, jawless mouth, etc. They lay eggs in freshwater, but their ammocoete larvae (lower) after metamorphosis return to the ocean.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ANIMAL KINGDOM-EXERCISE
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  4. Which one of the following living organisms completely lacks a cell wa...

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  7. Select the Taxon mentioned that represents both marine and fresh water...

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  8. match the name of the animal (colume I ) with one charcteristics (colu...

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  10. One of the representative of Phylum arthropoda is

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  11. Which of the following are correctly matched with respect to their tax...

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  12. Pheretima and its close relatives derive nourishment from

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  13. In which one of the following the genus name, its two characters and i...

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  15. which one of the following have the highest number of species in natur...

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