Which term best describes instincts or learned behaviors that help an organism survive?

• A. Behavioral adaptation
• B. Structural adaptation
• C. Genetic drift
• D. Mutation

Answer: (A)

The main idea tested here is behavioral adaptation, which covers instincts and learned behaviors that help an organism survive in its environment. These are actions or patterns—like migrating, hibernating, or hunting strategies—that increase an organism's chances of finding food, avoiding predators, or reproducing. They can be inherited as instinctual behaviors or acquired through experience and learning. Structural adaptations involve physical features, not behavior. Genetic drift is random change in allele frequencies, and mutation is a genetic change that can introduce new traits but isn’t a behavior. So the term that best captures instincts or learned behaviors that aid survival is behavioral adaptation.