Final answer:
An adaptation is a characteristic of a species that makes it well suited to the environment. It aids the survival and reproduction of an organism in its present environment.
Step-by-step explanation:
An adaptation is a characteristic of a species that makes it well suited to the environment. It is a heritable trait that aids the survival and reproduction of an organism in its present environment. Adaptations can be physical features, behaviors, or physiological processes that help organisms thrive in their specific habitats. Examples of adaptations include webbed feet in ducks for swimming, camouflage in chameleons for hiding, and long necks in giraffes for reaching foliage.