what has a nervous system?
h2o tortoises viruses bacteria crocodiles octopus animals elephants
A B C D E F G H
An octopus is a very intelligent invertebrate.
an octopus has a nervous system
what has a nervous system? (A) h2o (B) tortoises (C) viruses (D) bacteria (E) crocodiles (F) octopus (G) animals (H) elephants