Question

why do animals need food? select all that apply. to get air to get building materials for their bodies to get energy

Explanation:

Food provides nutrients which are building materials for body parts like muscles, bones etc. (e.g., proteins build tissues). Also, through cellular respiration, food (like carbohydrates) is broken down to release energy (in the form of ATP) that animals use for activities like moving, growing. Air is obtained through breathing (e.g., lungs in mammals, gills in fish) and not from food.

Answer:

to get building materials for their bodies, to get energy