Sea anemones look like plants, but they are really meat-eating animals. Sea anemones come in different sizes and many different colors. The sea anemone can attach itself to rocks or coral. In the center of the sea anemone is their mouth. In order for the sea anemone to eat, they must wait for their food to swim by. Then they sting it with their tentacles, and then push it into their mouth.
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Sea anemones respirate through permanent pores at each end of the mouth which open into a siphonoglyph (ciliated groove) in the side of the gullet. A continuous current of water flows through here carrying oxygen and removing waste matter from the tissues.