What can mammals generate heat with?
Muscle action with their fur fur and fat layers of fat hair Animal fur waistlines Bone action
A B C D E F G H
Heat is produced by muscle action and shivering.
mammals can generate heat by muscle action
What can mammals generate heat with? (A) Muscle action (B) with their fur (C) fur and fat (D) layers of fat (E) hair (F) Animal fur (G) waistlines (H) Bone action