vertebrates have a complete digestive system and a what?
Veins and arteries. lack of backbone bruised brain stem critical organs closed circulatory system incomplete circulatory system characteristics sensory neurons
A B C D E F G H
Vertebrates are members of of a larger group, the chordates .
Vertebrates have a complete digestive system and a closed circulatory system
vertebrates have a complete digestive system and a what? (A) Veins and arteries. (B) lack of backbone (C) bruised brain stem (D) critical organs (E) closed circulatory system (F) incomplete circulatory system (G) characteristics (H) sensory neurons