Organisms respond to their environment primarily through behavioral adaptations and physiological responses. These responses can include changes in behavior to seek food, avoid predators, or find shelter. Physiologically, organisms may alter metabolic rates, hormone levels, or developmental processes based on environmental cues. This responsiveness is crucial for survival, allowing species to adapt to changing conditions, find resources, and reproduce successfully. Understanding these responses is vital in ecology and conservation efforts to protect species and their habitats.