What kind of animal doesn't have a centralized nervous system?
dog mammals cows bird human elephants starfish a fish
A B C D E F G H
Echinoderms are represented by the starfish.
Starfish lack a centralized nervous system.
What kind of animal doesn't have a centralized nervous system? (A) dog (B) mammals (C) cows (D) bird (E) human (F) elephants (G) starfish (H) a fish