What do mammals use their body hair or fur to conserve?
Options:
- (A) food
- (B) energy
- (C) warm
- (D) warmth
- (E) strength
- (F) sunlight
- (G) water
- (H) health Let's solve this problem gradually.
Mammals conserve body heat with their hair or fur. Heat is emitted energy. Mammals conserve body energy with their hair or fur. So the final answer is (B).