You are presented with the question "Which species doesn't have an anterior or posterior end?" and the following answer choices: - animals - peachleaf willow - Rabbits - Blowfish - fur seals - Snakes - Echinoderms - alpacas Now knowing that adult echinoderms have radial symmetry and animals with radial symmetry lack an anterior and posterior end, choose the best answer.
The answer to this question is:
Echinoderms