Mammals have a layer of fat under the skin to help insulate the body.
If it has hair it is a mammal.
An organism with hair has a layer of fat under the skin to help insulate the body.
What does a hairy organism have under its skin to help insulate the body?
Options:
(a) fat
(b) hair
(c) food
(d) cell
(e) nerves
(f) coat
(g) fur
(h) marrow