What is a common characteristic of living things?

A common characteristic of living things is that they must adapt to environmental changes or perish. This characteristic emphasizes the importance of adaptability in survival. Living organisms constantly interact with their environment, and changes in that environment—such as fluctuations in temperature, availability of resources, or shifts in ecosystems—require organisms to adjust in order to thrive. Those that successfully adapt can continue to survive and reproduce, while those that cannot may face extinction.

This concept is fundamental in understanding biology, as it relates to the survival of species and the process of natural selection. Adaptation can take various forms, including physiological changes, behavioral modifications, or even evolutionary shifts over generations. Thus, the ability to adapt is crucial for the continuation of life on Earth.