Biology 2200 Exam 3 Questions and Verified Answers | Passed | A+

chordates : a member of the phylum chordata, animals that at some point during their development have a: 1. dorsal, hollow nerve chord 2. pharyngeal slits or clefts 3. muscular, post-anal tail 4. notochord notochord : a longitudinal, flexible rod made of tightly packed mesodermal cells that runs along the anterior-posterior axis of a chordate in the dorsal part of the body dorsal, hollow nerve cord : *nerve cord of embryo developed form plate of ectoderm *nerve cord of chordate embryo develops into central nervous system: brain and spinal cord 2 pharyngeal clefts : in chordate embryos, one of the grooves that separate a series of arches along the outer surface of the pharynx and may develop into a pharyngeal slit pharyngeal slit : in chordate embryos, one of the slits that form from the pharyngeal clefts and open into the pharynx, later develop into gill slits in many vertebrates ->allow water to enter mouth to exit without pass through entire digestive tract muscular, post-anal tail : tail extend posterior to anus