What has a more complex nervous system?
elephants phytoplankton animals insects viruses crocodiles tortoises bacteria
A B C D E F G H
Jellyfish and insects are invertebrates.
insects have a more complex nervous system
What has a more complex nervous system? (A) elephants (B) phytoplankton (C) animals (D) insects (E) viruses (F) crocodiles (G) tortoises (H) bacteria