They on a rocky surface in salt water and eat plankton.
Barnacles live only in salt water.
The things that eat acorn barnacles are whelks which arte sea snails, mussels and some starfish all eat of feed on barnacles
No, it does not.
Yes, barnacles are filter feeders. They use their feathery legs to capture tiny particles in the water, such as plankton, and then bring them to their mouth to eat. This is how they obtain nutrients to survive.
No.
commensalism
Some fish that eat barnacles include triggerfish, wrasses, and some species of gobies. These fish feed on barnacles by picking at their shells or scraping them off rocks. Barnacles are an important food source for many marine organisms.
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On the Beaches
The things that eat acorn barnacles are whelks which arte sea snails, mussels and some starfish all eat of feed on barnacles
Barnacles are actually very helpful to whales. The relationship that they have is mutualism. They attach on to them and they eat the algae and the other harmful things on them. The whales don't mind the barnacles because the whale acually benefits off the barnacles. Barnacles are benefited because they eat the things that are on the whale