The bones in a bird are hollow, reducing its weight for flight. This is an example of which characteristic of life?

A) Living organisms grow and develop.
B) Living organisms acquire materials and energy from the environment.
C) Living organisms reproduce.
D) Living organisms adapt to their environment.
E) Living organisms are homeostatic.

Adaptation

The evolutionary process by which organisms become better suited to their environment, leading to changes in traits over generations.

Hollow Bones

Bones that are light yet strong, characteristic of birds, aiding in flight by reducing overall weight.

Bird

Endothermic reptile that has feathers and wings, is often adapted for flight, and lays hard-shelled eggs.