Dogs use hearing for 
food and shelter population movement sensing sound circulatory systems chemical messengers courtship support it can be seen
A B C D E F G H
If an animal is a dog then it is a mammal.
Dogs use hearing for sensing sound.
Dogs use hearing for  (A) food and shelter (B) population movement (C) sensing sound (D) circulatory systems (E) chemical messengers (F) courtship (G) support (H) it can be seen