From smallest to largest it would be individual, population, community, ecosystem, biome, and then biosphere.
The theory of continental drift by Alfred Wegener states that all land masses were originally united
in a single supercontinent known as Pangaea (250 million years ago). He shows
evidences like continental fit, similarity of rock sequences, glacial till and
striations, fossils (cynogathus-land reptile, lystrosaurus-land reptile,
mesosaraus-freshwater reptile, glossopteris-fern plant) to support his theory but
what was lacking is that it lacked a mechanism to explain HOW the continents
moved apart. But Harry Hess, a geologist and Navy submarine commander during
WWII <span>brought up a new
evidence to add in support of Wegener’s theory: the idea of seafloor spreading and magnetic reversals.</span>
Africa has a large extent of tropical seasonal forests and savannas; a band runs through sub-saharan Africa and runs down the eastern coast with another band extending across the continent south of the tropical rainforest. There are extensive areas of these biomes in India, southeast Asia, and northern Australia as well.
The picture didn’t come out that good but I think it’s still readable
