Which types of animals must have access to environmental enrichment, as mandated by the animal welfare regulations? pigs, ruminants, horses?

the answer is d. exposing corruption in the church

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

whats the answer to your question?