Why does Australia have such unique biodiversity (variety of animals and plants) in its fauna and flora?

Australia has unique biodiversity in its fauna and flora because it has been separated from the rest of the world (from other lands) for millions of years.

Explanation:

Australia is located in the Oceania continent. It's the country that has the most unique biodiversity and environment in the entire continent. Being isolated from the rest of the world, and also being completely surrounded by oceans, made Australia a place where plants and animals evolved.

the part of the earth that is best reflected on a map is the surface. maps reflect borders of countries or territories as well as physical features like mountains.

explanation:

mali had been a state inside of the ghanaian empire. after ghana fell because of invading forces and internal disputes, mali rose to greatness under the leadership of a legendary king named sundiata, the "lion king." the songhai empire, already weakened by internal political struggles, went into decline.