All Cnidarians have appendages with stinging cells in their tips which are utilized to capture and stifle prey. In truth, the phylum title "Cnidarian" actually implies "stinging animal." The stinging cells are called cnidocytes and contain a structure called a nematocyst. The nematocyst could be a coiled thread-like stinger.
If a person<span> is </span>not getting enough essential amino acids in his or her diet<span>, muscle tissues </span>would<span> break down to supply amino acids. </span>