The right answer answer is the same species.
* Pregygotic barriers prevent mating or ovum from being fertilized if different species attempt to mate. There are four barriers in this category.
* Postzygotic barriers occur after fertilization between different species. The hybrid zygote formed may be abnormal or infertile. There are three barriers in this category.
-The non-viability of hybrids
-The sterility of hybrids
-The lapse of hybrids