Q: What is something missing in starfish?
Options:
- (A) the body's largest organ
- (B) centralized nervous system
- (C) characteristics
- (D) layers of fat
- (E) permineralization
- (F) biological diversity
- (G) kinetic energy
- (H) A compound that donates proton
Let's think step by step below.
Echinoderms lack a centralized nervous system. Echinoderms are represented by the starfish. Starfish lack a centralized nervous system.
Thus, the answer is (B).