Depending upon the type of echinoderm, they can eat just about anything smaller than themselves.
Sea stars are typically predators that eat clams, other sea stars, sea cucumbers. Often, as well, sea stars eat animals that don't move such as sponges or corals.
Most sea urchins eat algae.
Many sea cucumbers use their sticky tentacles to catch small floating organisms called plankton. Others mop the bottom to eat detritus. In many regions, the populations of echinoderms living on the ocean bottoms are very important predators and determine what other animals can live there.
their stoumach
yes
starfish they are echinoderms
fish
orange
fish and other echinoderms
echinoderms, crustaceans, molluscs, and worms
They eat corals, sponges, sea urchins, other echinoderms, and small crustaceans.
no. starfish feed on mussels, crustaceans, worms and echinoderms
To be technical, Echinoderms do not spend time caring for their young. They have sex, give birth, then believe it or not some eat them.
they put it in their mouth and suck on it with tinny teeth called dumb axes
Echinoderms, like all animals, are heterotrophs and need to eat food to survive.