Australia has distinctive organisms, such as egg-laying mammals and pouched mammals (marsupials), because they have:
A) an unusual climate that has triggered natural selection.
B) selective conditions that have been relaxed.
C) been separated and isolated from other land masses for a long period of time.
D) experienced a significantly slower rate of evolutionary change.
E) fewer species of organisms than most continents.

Question

Quizplus · Accepted Answer

Australia's unique fauna, including egg-laying mammals and marsupials, is primarily due to its long-term geographical isolation from other continents, allowing these species to evolve independently.

Australia Has Distinctive Organisms, Such as Egg-Laying Mammals and Pouched