Biomes are large regions characterized by certain conditions, including a range of climate and ecological communities adapted to those conditions. Ecosystems consist of all interactions between biotic and abiotic factors functioning together in an area. How are ecosystems and biomes related?

ABiomes and ecosystems are identical in size and composition.

BA biome includes many similar ecosystems.

COrganisms found in ecosystems cannot be found in biomes.

DAn ecosystem includes many different biomes.