digestive system of cnidaria (combjellies)
Cnidarians all have the same one-way digestive system. All food, undigested and digested, are passed through the same way. The only digestive tract cnidarians have are called the Gastrovascular Cavity. Cnidarians are predators. which have many different ways of warding off enemies and protecting themselves. They inject a toxic chemical which stun or even kills their pray, then the food is passed through their only digestive tract.