according to the plate tectonic theory, australia was a part of the supercontinent pangaea. millions of years ago pangaea divided, and eventually australia was separated as its own continent. which of the following is most likely a result of the isolation of the australian continent for millions of years? australia has no fossil record of species evolution. australia has a large number of species that are not found anywhere else. plant populations in australia have all evolved to be self-pollinating to maximize their chance for reproduction. animal populations in australia have little genetic diversity and are less likely to survive environmental changes.​