Answer:
Atoms, bones, dairy, B, feathers, C, A
Step-by-step explanation:
Atoms are the building blocks, bones are rigid so they support, dairy has a great source of carbs, the liver holds waste, birds are the only animal classification to have feathers, sharks have dark tops and light bottoms for this very reason (I learned this by watching wild kratts) and energy is not made up of a structure of atoms.