Preventing the transfer of heat from an organims 's body causes that organism to keep warm, and fur or feathers help hold heat in, but some body heat always escapes. Given these facts, what does fur do among the following options:
- it serves as food
 - refract or absorb.
 - It helps them survive
 - absorb light energy
 - it catches fire
 - it drowns the organism
 - structure and function
 - it keeps an organism warm


 

        it keeps an organism warm 