What are vertebrates with four limbs?
humans frogs fish Birds phytoplankton coral bears goats
A B C D E F G H
All frogs are amphibians.
frogs are vertebrates with four limbs
What are vertebrates with four limbs? (A) humans (B) frogs (C) fish (D) Birds (E) phytoplankton (F) coral (G) bears (H) goats