WebChordates are known to have spinal chords be their main attraction. But to be classified you also need a skull, a post-anus tail at one point in one's life cycle, the ability to make mucus, and other minor details. The hagfish, while not containing most of these has at least a skull and a post-anus tail so it can be grouped into this section ... WebInteresting Swordfish Facts. 1. Swordfish are expert fencers. The elongated, flattened rostrum of the swordfish is a precision weapon which can be slashed with deadly accuracy. Swordfish use their swords to knock fast, agile prey off balance during high speed chases, incapacitating them for easy consumption. 1.

Hemichordate marine invertebrate Britannica

WebThe notochord is an embryonic midline structure common to all members of the phylum Chordata, providing both mechanical and signaling cues to the developing embryo. In vertebrates, the notochord arises from the dorsal organizer and it is critical for proper vertebrate development. WebThe notochord is an embryonic midline structure common to all members of the phylum Chordata, providing both mechanical and signaling cues to the developing embryo. In … can hummus go bad if not refrigerated

Notochord: Definition, Function and Structure Biology …

WebIt retains the notochord as the major skeletal support throughout life; in vertebrates the notochord is surrounded and usually replaced by a vertebral column during embryonic … Webnotochord, flexible rodlike structure of mesodermal cells that is the principal longitudinal structural element of chordates and of the early embryo of vertebrates, in both of which it … WebLike the remaining subphylum of the chordates, the Vertebrata, the protochordates have a hollow dorsal nerve cord, gill slits, and a stiff supporting rod, the notochord, the forerunner of the backbone. The protochordates differ chiefly … fit me foundation sachet