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Chapter 32 vocab

QuestionAnswer
Blastopore. The opening to the outside during the gastrula stage of an embryo.
Protostome. Animals with mouths that develop from or near the blastopore.
Deuterostome. An animal whose anus develops from or near the blastopore.
Ossicle. A calcium rich plate that makes up the endoskeleton of an echinoderm.
Water-Vascular system. A water-filled system of interconnected canals and thousands of tiny hollow tube feet.
Skin gill. Small, fingerlike projections that grow between the spins of an echinoderm where respiratory grasses are exchanged.
Chordate. Animals that have a notochord.
Notochord. Stiff rod that develops along the back of the embryo.
Pharyngeal Slit. Openings that develop in the wall of the pharynx.
Invertebrate Chordate. Chordates that do not have backbones.
Created by: ava-barnhill
 

 



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