The term for the constant change in an organism's environment that can affect its survival is termed as environmental variability. This concept encompasses fluctuations in factors such as climate, resource availability, and habitat conditions. Organisms must adapt to these changes to thrive, leading to evolutionary processes that shape their physiological and behavioral traits. Environmental variability can influence population dynamics, species interactions, and ecosystem functions. Understanding how organisms respond to these changes is vital for addressing challenges like climate change, habitat destruction, and conservation efforts aimed at promoting resilience in populations facing shifting environmental conditions.