Some species often have some verrucous protrusions on their body walls, which are generally protective, or they can release white toxic filaments from the small holes on them, and can also be used to stick sand, small shells and so on. Or they may emit barbed filaments from barbed filaments on the protrusions. The most common anemones are green anemones, yellow anemones, red anemones and orange anemones.
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Anemone toxin
The biggest harm of anemone to human beings is that it hides countless stinging cells, and the stinging sacs in the stinging cells contain spiny filaments. Once you touch it, these stingers will immediately stab your opponent and inject "anemone toxin". Studies have shown that when anemones emit toxins, the osmotic pressure in the body reaches 2000 gravity acceleration, and it takes only 0.02 seconds to complete the launch. There is a kind of sand anemone in Bermuda, which is quite toxic. It is called "the most powerful biological toxin in the world", even worse than potassium cyanide.
Anemones have no bones and belong to coelenterates in taxonomy, which represents an important link in the evolution from simple organisms to complex organisms. It is a primitive and simple animal that can only respond to the most basic survival needs. Every tentacle of an anemone around a digestive system can decide whether the food it touches is suitable or not, but it has no function of transmitting information to other tentacles.
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