answersLogoWhite

0

Sea lampreys take water into their mouth and pass it over their gills and out the gill slits. Since they are predatory and attach to fish for an extended period of time such that they can't take water into their mouth they must contract muscles associated with their gill slits to move water into and out of the gill chamber to provide oxygen to their gill filaments.

User Avatar

Wiki User

15y ago

What else can I help you with?