Sea anemones and corals are both animals living in the ocean, which are common and familiar to us.According to the classification, sea anemones belong to the order Anemonida of the phylum Cnidaria, while corals belong to the order Coralliales of the phylum Cnidaria.It can be seen that sea anemones and corals have a relatively close relationship, which can be said to be close relatives.If all the organisms in the coral class are generally called corals, then sea anemones are also corals.Of course, the animals in the order Anemones are different from those in the order Corallina, not exactly the same.
1. Tentacle difference: Although sea anemone and coral have tentacles, if you look carefully, you can tell that their tentacles are actually different.The tentacles of sea anemones are more rounded and smooth, and they look more fleshy.The tentacles of coral have some thinner and smaller spines, which are similar to the spines of cactus, so they are relatively rough.
2. Skeleton difference: An important feature that distinguishes anemones from corals is whether they have skeletons.Sea anemones have no skeleton, and the bottom of their body is a chassis, which can be attached to other objects, and can also move their body position through the chassis.Corals have skeletons.Specifically, coral can be divided into two kinds, one is hard coral, the bone of this coral is relatively hard, is composed of calcium carbonate; Another kind of coral is the soft coral, this kind of coral has the bone needle.
3. Habit difference: In terms of habit characteristics, sea anemones and corals are also different.Sea anemones like to live alone and do not like to gather together; Corals, on the other hand, are gregarious.In addition, there are some differences in their feeding habits.Anemones eat plankton and the fish around them, and they like to prey on fish; But what the corals eat is mainly the plankton around them.
。
