fat
food
food
by its mouth or you eat its food
Starfish do not release energy into food. Starfish obtain energy from food.
coral and clams
Not really, mainly starfish prey prefer shelled animals such as oysters and clams. They would not eat starfish because to feed they tend to push open shells using their tube feet and extend their stomach out to engulf and digest food. Starfish have a rough surface and starfish prefer soft tissue as a food.
I wouldn't think so. In the wild starfish eat mussels and other molluscs.
No, starfish do not eat with their mouths. Instead, they turn their stomach inside out to grab and partially digest the food they want to eat.
Starfish as a species mainly eat meat, though there are a few starfish that do eat rotting plants found on the sea floor. Some starfish focus on detritus --- meaning they eat just about anything that is decomposing. The main diet of starfish are crustaceans i.e. claims, sea snails, oysters, hermit crabs, and other mollusks. Starfish are opportunistic and will eat any slow moving or dieing fish. At times starfish will even eat other starfish.
No studies have gone into this, but you can say that starfish send their stomach and other digestive fluids out from their body to digest the food that they will eat, then the starfish will eat the partially digested food back up. So, it is sort of regurgitating.
Starfish eat food via their pharynx (mouth) like most animals do.