Marsupials, such as kangaroos, koalas, and wombats, are mammals that care for their newborn young in a pouch. all marsupials that are found in australia are thought to have evolved from a single species that migrated to the island and then adapted to the various niches. what does this example illustrate?

The correct answer is adaptive radiation.

Explanation:

Adaptive radiation is a process of rapid diversification of an ancestral species into a large number of descendant species in a different environment with adaptive morphological and physiological traits.  

Over 200 species of Marsupials mice, moles, flying squirrels and flying phalanger are found in Australia continent which was formed as a result of adaptive radiation from ancestral species to occupy the different niches of Australia.

Thus, adaptive radiation is the correct answer.

the answer is trees if i'm not mistaken

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )