Which adaptation involves physical changes to an organism's body?

Morphological adaptation refers to the physical changes in an organism's body structure that enhance its ability to survive and reproduce in its environment. This can include variations in size, shape, color, and anatomical features such as the presence of specialized limbs, beaks, or body coverings.

For example, the thick fur of polar bears is a morphological adaptation that helps them retain heat in extremely cold environments. Similarly, the long neck of a giraffe is an adaptation that allows it to reach high foliage for feeding. These changes are essential for the organism’s survival and often reflect the specific demands of their habitats.

Behavioral adaptation involves changes in how an organism behaves in order to survive. Physiological adaptation refers to internal body processes that help an organism adjust to its environment, such as temperature regulation or metabolic changes. Ecological adaptation focuses on how an organism interacts with its environment and other species, which can include its role within an ecosystem. However, none of these options involve the physical body changes that define morphological adaptations.