This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Chordate Member of the phylum Chordata, animals that at some point during their development have a notochord; a dorsal, hollow nerve cord; pharyngeal slits or clefts; and a muscular, post-anal tail. Chorion (kor-e-on) The outermost of four extraembryonic membranes. It functions in gas exchange and contributes to the formation of the mammalian placenta....
View Full Document
- Spring '10