starfish lack what kind of system?
respiratory critical organs alveoli heat or cold hydration Bodily water food and shelter frontal zones
A B C D E F G H
Echinoderms are represented by the starfish.
starfish lack respiratory systems
starfish lack what kind of system? (A) respiratory (B) critical organs (C) alveoli (D) heat or cold (E) hydration (F) Bodily water (G) food and shelter (H) frontal zones