All of them. All of an animal's organs and external features have a purpose that help keep the organism alive.
Depending on the body part, in quite a few ways... you have to have body partsto survive.
All of them.
Claws
teeth,claws,andfur
its long neck
yes they use their ears to radiate body heat.
The ocean animals need oxygen to survive.
their camo coats
A Macaw has a special body part?
Heart, Fat and Fur.
All body parts allow a rattlesnake live in its habitat. Remove any body part and the snake will not survive.
Yes. They use all of their body parts to survive, especially the heart, lungs, brain, and many other components of their body systems.