Question

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?
○ behavioral adaptation
○ adaptive radiation
○ geographic isolation
○ population explosion

Explanation:

Adaptive radiation is when a single species evolves into many different species to fill various ecological niches. Here, one marsupial species migrated to Australia and evolved into kangaroos, koalas, wombats etc. to adapt to different niches. Behavioral adaptation would involve changes in behavior (not shown here). Geographic isolation is about being separated geographically (part of the process but the key is the diversification into niches). Population explosion is about rapid increase in population size (not relevant).

Answer:

adaptive radiation