Which term refers to preserved remains of organisms?

• A. Fossil
• B. Adaptation
• C. Scientific theory
• D. Mechanism

Answer: (A)

This question tests your understanding of what we call preserved remains of organisms. The term is fossil. A fossil is any preserved remains or traces of life from the past, such as bones, shells, imprints, or even footprints that have been preserved in rock. Fossils form when organisms are buried by sediment and undergo processes like mineral replacement over long periods, turning them into rock-like relics of ancient life. The other terms don’t describe preserved remains: an adaptation is a trait that helps an organism survive; a scientific theory is a well-supported explanation of natural phenomena; a mechanism is the process by which something happens. So fossil is the best match.