wear your heart on your sleeve. to make your feelings and opinions obvious to other people John's always worn his heart on his sleeve, so there's no doubt who he'll be supporting. See also: heart, on, sleeve, wear. Related vocabulary: wear something on your sleeve.
In many bivalves and snails, and in cephalopods, part of the mantle is modified into a siphon, which can be used to pump water through the mantle cavity for respiration, feeding and/or jet propulsion. Freshwater and marine mollusks have gills (called ctenidia) for respiration, located in the mantle cavity. In most bivalves, these are enlarged and serve to trap food particles as well (Morton 1983).
Rating Newest Oldest. Best Answer: Yes, crayfish breathe with gills. However, although they are called 'fish', they are not actually fish. They are crustaceans just like crabs, lobsters, shrimp, sea monkeys and sowbugs.Their gills are part of the biramous appendages on the underside of their abdomen (the same as the tail of a lobster).These appendages have two parts, the paddle-like swimming legs, and the leaf shaped gills.hey are crustaceans just like crabs, lobsters, shrimp, sea monkeys and sowbugs. Their gills are part of the biramous appendages on the underside of their abdomen (the same as the tail of a lobster). These appendages have two parts, the paddle-like swimming legs, and the leaf shaped gills.