Fact 1: Preventing the transfer of heat from an organims 's body causes that organism to keep warm. Fact 2: Fur or feathers help hold heat in, but some body heat always escapes. Given the two facts above, what does fur do?
Options are:
(1). it serves as food
(2). refract or absorb.
(3). It helps them survive
(4). absorb light energy
(5). it catches fire
(6). it drowns the organism
(7). structure and function
(8). it keeps an organism warm
(8).