Characteristics of Placozoa

        There is only one known Placazoan species called a Tricoplax.

        The word Placozoa comes from the words Plat, meaning plate, and Zoon meaning animal.

        A Tricoplax is a soft bodied marine animal, meaning that it only lives in saltwater.

        It is asymmetrical, and does not have a mouth.

        It is a multicellular organism, that is arranged in two layers.

        It eats by moving over another organism and secreting digestive enzymes into the food. Then individual cells take in and breakdown the food products.

        It is not known whether a Tricoplax reproduces sexually or asexually.

        They measure to be about three millimeters in length.

Above is a Tricoplax Adhaerens.