Evolution is the scientific explanation for the diversity of species.

• A. Religion
• B. Evolution
• C. Catastrophism
• D. Creationism

Answer: (B)

Evolution is the scientific explanation for why there are so many different species. It describes how all living things share a common ancestry and diversify through descent with modification. In populations, individuals vary genetically; those with traits that help them survive and reproduce pass more of their genes to the next generation, shifting trait frequencies over generations (natural selection). Over long timescales, this process can produce new species and a wide range of forms adapted to different environments. The evidence includes the fossil record showing gradual changes and transitional forms, similarities in anatomy and genetics across organisms, and direct observations of speciation. Other options invoke beliefs or older ideas that aren’t testable scientific explanations for how diversity arises.