Sea squirts. The delicacy of the sea. Let's look into thier life cycle which is similar to our life cycle. 　　There are Korean expressions for describing something foolish, such as foolish, idiotic, like a piece of crap, or a sea cucumber, or a sea squirt. Sea squirts are said to belong to the same phylum as humans. Chordates, which are skeletal structures that develop in the embr... (展開全部)