Final answer:
In order to survive in radically different situations, individuals and communities must adapt through genetic changes and behavioral adjustments. For example, birds with traits that enable them to tolerate colder temperatures are more likely to survive in a cold climate. Communities can adapt by making collective changes, such as developing new hunting or farming techniques.
Step-by-step explanation:
In order to survive in radically different situations, individuals and communities must adapt to the new environment. This adaptation can occur through various mechanisms, such as genetic changes and behavioral adjustments. Genetic variability within a population allows certain individuals to be better suited to the new conditions, increasing their likelihood of survival and reproductive success.
For example, in a population of birds experiencing a sudden change in climate, individuals with traits that enable them to tolerate colder temperatures may have a higher chance of survival. These individuals will be more likely to reproduce, passing on their cold-tolerance genes to the next generation, and gradually, the entire population may become better adapted to the new climate.
Communities can also adapt to new situations by making collective changes. For instance, in response to a scarcity of food resources, a community may develop new hunting or farming techniques to ensure their survival. They may also adopt new social structures or technologies to better cope with the challenges presented by the new situation.