Which species doesn't have an anterior or posterior end?
Options:
- (A) animals
- (B) peachleaf willow
- (C) Rabbits
- (D) Blowfish
- (E) fur seals
- (F) Snakes
- (G) Echinoderms
- (H) alpacas OK. Let's think hard:
Adult echinoderms have radial symmetry. Animals with radial symmetry lack an anterior and posterior end. Adult echinoderms lack an anterior and posterior end.
So, the final answer is (G).