Respuesta :
Answer:
Cells, From birds to bacteria, we all have cells or are cells, depends.
Answer:
Below! : )
Explanation:
All animals are eukaryotic, multicellular organisms and most animals have complex tissue structures with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.
Hope this helps! : )