Webbed feet in frogs are an example of what biological concept?

• A. Evolution
• B. Structure
• C. Physiology
• D. Adaptation

Answer: (D)

Webbed feet in frogs show how inherited traits help an organism survive in a particular environment. The webbing increases the surface area of the feet, allowing frogs to push against water more efficiently and swim better. This improved swimming helps frogs move, catch prey, escape predators, and travel between ponds, all of which boost survival and reproductive success in aquatic habitats. Because this feature provides a clear advantage in a specific environment and is inherited, it exemplifies adaptation. It’s about why the trait exists to fit the frog’s lifestyle, rather than just describing a physical form or the general function of the feet.