Hybrid offspring such as mules and zonkeys that are produced when two different, but similar species mate are not considered a t
rue species because the hybrids are infertile. What type of reproductive isolation does this illustrate? a. behavioral prezygotic reproductive isolation
Glial cells. More specifically, it could be oligondenrocytes, astrocytes, ependymal cells, schwann cells, microglia, or satellite cells, because they are all types of Glial cells.