Define 'biological species.'

Video transcript

Hello everyone. And in today's video we're going to go over the following problem populations of the ancestral species are geographically isolated and should pay attention to this term because it's very important from one another and they evolved into sunnier species. The scientific hypothesis is regarded at us. So I want you to just remember that these processes that is happening in the question is speciation. So two new species are evolving from an ancestral species due to these isolation that occurred, which prevented this exchange of a leo's. So now, since this process is regarded as speciation, we're going to eliminate answer choices that do not regard a speciation such as answer choice E. And answer choice D. This answer choice D. D. And those and those symbiont hypothesis is the hypothesis behind just the chloroplast and the mitochondria within cells. So they really don't have anything to do with speciation specifically. Now this is going to make us focus in answer choices A through C. So let me quickly remind you of what each of these answer choices mean so that we can solve the problem beginning by answer choice C. Which is going to be para patrick speciation. And this is when species developed and continuous yet segregated habitats so they're not completely isolated there in this contagious habitats that allow the exchange of leo's. However speciation still occurs. If we look at our answer choices, we can see that they are geographically isolated as we see up here. So this is not going to be the answer choices. This does not describe this scenario. We know we have answer choice B, which is going to be ST Patrick's appreciation. This in Patrick's appreciation as we see here is when species developed without a geographical barrier. We can see again that in our answer choice, we have the geographical barrier installed. And this is what causes the speciation. We're going to eliminate this answer choice as well. And it's all leaves us with Allah Patrick speciation as or possible answer. And if we read the definition of it, you can see that Allah Patrick speciation occurs from geographical geographical barrier forming between these two species, which allows or stops the exchange of leo's, making them species from each other. And so that is going to be the correct answer to our question and our final answer. So I really hope this video helped you and I hope to see you on the next one.