Speciation occurs when populations of a species become so different over time that they can no longer interbreed. Which of the following best describes the relationship between speciation and biodiversity? A. Speciation can only occur in ecosystems wi

The best description of the relationship between speciation and biodiversity is: **D. Speciation results in an increase in overall biodiversity.** This is because when new species are formed through the process of speciation, the number of different species in an ecosystem increases, thereby contributing to higher biodiversity.