Which factor is an intrinsic factor among the following?

Which factor is an intrinsic factor among the following?

• A. Age
• B. Air
• C. Moisture
• D. Ambient temperature

Answer: (A)

Understanding whether a factor is intrinsic or extrinsic helps predict what can be controlled and what is inherent to the subject. An intrinsic factor is something internal to the organism, like its age, which describes its stage in life and cannot be changed by the environment in the short term. The other items—air, moisture, and ambient temperature—are environmental conditions that come from outside and can vary with surroundings or experimental setup. They influence outcomes by altering exposure or conditions but are not characteristics of the organism itself. So the internal, organism-related factor here is age.

Understanding whether a factor is intrinsic or extrinsic helps predict what can be controlled and what is inherent to the subject. An intrinsic factor is something internal to the organism, like its age, which describes its stage in life and cannot be changed by the environment in the short term. The other items—air, moisture, and ambient temperature—are environmental conditions that come from outside and can vary with surroundings or experimental setup. They influence outcomes by altering exposure or conditions but are not characteristics of the organism itself. So the internal, organism-related factor here is age.