hi there
your answer to this is :
biome can be made up of many ecosystems for all living animals . For example, an aquatic biome can contain ecosystems such as coral reefs and kelp forests. Some are use broad classifications and count as few as six biomes. These are forest, grassland, freshwater, marine, desert, and tundra
ihope this helps out
Have a great afternoon
FaithRawlins14