What can have a more complex nervous system?
a fish Birds insects coral the Sun ducks rocks air molecules
A B C D E F G H
Corals, and invertebrates in general, are delicate creatures.
coral can a more complex nervous system.
What can have a more complex nervous system? (A) a fish (B) Birds (C) insects (D) coral (E) the Sun (F) ducks (G) rocks (H) air molecules