How does the IB biological approach typically handle explanations that include multiple factors?

• A. It integrates physiological mechanisms with cognitive, developmental, and environmental factors.
• B. It focuses solely on physiological mechanisms.
• C. It ignores cognitive factors.
• D. It denies environmental influence.

Answer: (A)

The idea being tested is that explanations in the biological approach are not limited to brain biology alone but are built from multiple interacting influences. In the IB biological approach, behavior is understood as the result of physiological processes in the brain and body working together with cognitive processes, developmental history, and environmental context. This integrative or biopsychosocial stance is why the best answer says to combine physiological mechanisms with cognitive, developmental, and environmental factors. For example, consider how stress affects memory: hormones and neural circuits play a role, but the impact also depends on a person’s coping strategies, prior experiences, and current social support. If you focused only on physiology, you’d miss how thinking and environment shape the outcome; if you ignored cognition or environment, you’d neglect key ways biology actually interacts with real-life contexts.