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Question and Answer

Common name ofPetromyzonis

(A) Lancet
(B) Hagfish
(C) Acornworm
(D) Lamprey

Answer

Answer: D
Sea Lamprey orPetromyzonis an agnathan. It is a marine organism. It lacks jaws and resembles an eel. It has a sucker-like mouth that is involved in filter feeding. It has seven brachial openings behind its eyes. They are anadromous and are usually found at depths of around 4000 m and can tolerate temperature ranges from 1.0 and 20 C.
So, the correct answer is 'Lamprey'.
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