A sea anemone usually attaches itself to rocks or coral. They have a central mouth which is surrounded by tentacles with nematocysts, stinging cells that paralyze and entangle small marine animals. Sea amemone The Anemone. It stings its prey with venomous cells in order to take them captive. The sea anemone is considered to be the flower of the sea.
Sea anemones look like plants, but they are really meat-eating animals.
Sea anemones come in different sizes and many different colors. It can be green, orange, red, or purple. It looks like a flower. It is a hollow tube that opens at one end. Anthozoa, phylum Cnidaria.