Answer:
The answer is B. Many small changes can create a whole new species.
Explanation:
Natural selection is a strong source of speciation in living beings.
After several generations, it is possible to observe distinctive features at the level of a population. A clear example of this can be observed in humans, where some physical traits are characteristic of different regions.
If sufficient time passes, it is possible that the differences of one population are sufficient to differentiate from another similar population, creating reproductive isolation and giving rise to a new species.
