[Campbell Biology P.773] Which statement about lampreys is FALSE? | Practice Question
Which statement about lampreys is FALSE?
A: The skeleton of lampreys is primarily composed of cartilage that contains collagen.
B: Larval lampreys are suspension feeders and resemble lancelets.
C: Parasitic lampreys migrate to the sea or lakes as they mature into adults, while some non-parasitic species feed only as larvae.
D: The notochord persists as the main axial skeleton in adult lampreys.
Explanation
The text states: 'The skeleton of lampreys is made of cartilage. Unlike the cartilage found in most vertebrates, lamprey cartilage contains no collagen. Instead, it is a stiff matrix of other proteins.' Therefore, the statement that lamprey cartilage contains collagen is false.