What is an adaptation?

• A. A change in an animal's habitat
• B. A feature that allows an organism to survive in its environment
• C. A behavior learned over time
• D. The process of evolution

Answer: (B)

An adaptation is a feature that has evolved over time, enabling an organism to survive and reproduce in its specific environment. This could include physical traits, such as the thick fur of a polar bear that provides insulation in cold climates, or behavioral adaptations, like migratory patterns in birds that help them find food and suitable breeding grounds.

The essence of an adaptation is its direct connection to the organism's ability to thrive within its habitat, which can involve aspects like feeding habits, reproduction strategies, or even defense mechanisms against predators. When a feature enhances an organism's chances of survival and successful reproduction due to specific environmental pressures, it is considered an adaptation.

Other options, such as a change in an animal's habitat, behaviors learned over time, or the general process of evolution, do not capture the precise meaning of adaptation, which focuses specifically on the beneficial traits that arise in response to environmental challenges.