It seems that you have missed the given options for this question. But anyway, here is the correct answer. <span>f asian and african elephants are the only surviving species mentioned in the text, what happened to the wooly mammoths and primeelephas is that, they became modern elephants. Hope this answer helps. Thanks for posting your question.</span>
When limiting factors increase, diversity in populations decreases. In this sense "limiting factors" can be anything from a lack of resources to a lack of food, meaning it's harder for the population to survive.
