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.


C

Biology & Microbiology

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