Our planet Earth is full of variety, from the Arctic and Antarctic poles to the rainforests of the equator, the world is full of different kinds of environments, full of living things that have adapted to those conditions.
In biology, these groups of similarly-adapted living things are called biomes.
Examples of biomes include the boreal forest, where plants and animals have evolved to survive extreme cold, and the coral reef, where all kinds of organisms live in close proximity to the surface of the ocean.
Living organisms within a biome are always interconnected in ways scientists are still only beginning to be able to understand.
Their lives are affected by the lives of others, whether it is as predator, prey, scavenger, or producer.
This set of connections is called an ecosystem.
To combine the two ideas, a biome could be described as the shared environment which contains multiple ecosystems!