The most common one is that both are Multicellular. Multicellular animals by definition are made of many cells which are to varying degrees independent and integrated. All single species in the universe, whether animals or land plants, are multicellular, whereas a few organisms are partially multi and unicellular. Both vertebrates and invertebrates are also heterotrophs. This means that they cannot make their own food and must get their energy by consuming other animals or plants.
