Coral is a kind of creature that lives in the ocean. Their colors are very bright and diverse. They are mainly distributed in the tropical ocean and are suitable for living in places where the water temperature is relatively high. Specifically, they belong to animals among living things, and they can not be regarded as plants because they look like bushes. Coral is a lower invertebrate, belonging to the invertebrate coelenterate, the body structure is very simple, compared with the fish around them, their lower level, the structure is also very simple.
Although coral is an inferior animal, many life activities that animals can carry out can also be carried out by coral. Many people think that corals do not move, but if they are observed for a long time, they also move slowly, but unlike most animals, they can move freely all the time. In addition, like most animals, corals can also eat, they will use tentacles to catch prey, and catch prey into the mouth and then digest. There are some foods that can not be digested and absorbed, and they will excrete them into water.
From the appearance, coral and stone do have certain similarities, just like colorful stones. But coral is not rock. Corals are sea creatures, animals. They have life. Stones, on the other hand, are inanimate objects, not living things. As animals, corals can carry out a series of life activities, such as predation and feeding, but stones can not, because they do not have life.
