Indicate Which Examples Would Be Considered Different Species Under the Biological

Indicate which examples would be considered different species under the Biological Species Concept. Check all that apply.

A) Two bear species that are able to breed in zoos but have separate ranges in nature.
B) Two skunk species that look morphologically similar but are unable to interbreed.
C) Two snake species that look morphologically different but regularly form fertile hybrids.
D) Two plant species with no gene flow between them.