In some circumstances, the use of probiotics, which stimulate the rapid growth of bacteria that are mutualistic or commensal with humans, can eliminate the need to use antibiotics, which can wipe out helpful bacteria along with harmful bacteria. The use of probiotics is an example of which process? a. succession b. competitive exclusion c. parasitism d. niche differentiation

Video transcript

Hello everyone and welcome to today's video. So according to the competitive exclusion principle, we have that two competing species cannot coexist in the same niche because remember that when two species occupy the same niche, they're going to have more or less the same function in the habitat. And so what do we need in order to achieve the same function? What we need the same resources. So these species that occupy the same niche are usually going to be requiring the same resources. However, in the real world we do not have unlimited resources. Everything is limited. So at the end these resource is going to eventually run out. So two competing species cannot coexist in the same niche because they're competing for the same resource and this resource is limited. So one of them will eventually out compete. The other for access to these resource. Because of this, the correct answer choice is going to be answer choice. But at the end of the video, I really hope this helped you.