A non-example of a biome would be anything that does not encompass a large-scale, geographically defined ecosystem characterized by a distinct climate and dominant plant and animal communities.

Here are some examples:

* A single tree: While a tree is part of an ecosystem, it's not a biome itself.

* A garden: Gardens are cultivated environments and don't represent the naturally occurring ecosystems that define biomes.

* A house: Houses are built structures and are not part of a natural ecosystem.

* A city: Cities are human-made environments and don't represent the naturally occurring ecosystems that define biomes.

* A pond: While a pond is an ecosystem, it's not a large-scale, geographically defined ecosystem like a biome.

Think of biomes as large-scale natural patterns that are shaped by climate and geography. Anything smaller than that, or anything human-made, would not qualify as a biome.