What is the process by which an individual organism adjusts to a change in its environment to maintain performance across a range of environmental conditions?

• A. Acclimatization
• B. Pandemonium
• C. Wherewithal
• D. Fondle

Answer: (A)

Acclimatization is the process by which an individual organism adjusts to a change in its environment to maintain performance across a range of environmental conditions. This adjustment is usually reversible and happens within the organism’s lifetime, involving physiological changes like how oxygen transport, metabolism, or heat tolerance respond to new conditions, or behavioral shifts such as changing activity times. For example, moving to higher altitude prompts the body to increase red blood cell production and adjust breathing to cope with thinner air, helping maintain energy and function as conditions change. This is different from evolutionary adaptation, which involves genetic changes over generations. The other terms don’t describe this kind of adjustment: they refer to chaos, means or resources, or an unrelated action.