In a forest, although we usually imagine it as a whole, we can distinguish individual floors, called layers of the forest.

The first, lowest one is the litter, which consists of fallen leaves, needles, branches and pieces of bark. Litter is the place where many organisms live.

Above the mulch is the undergrowth, or the lower layer of the forest, which includes mosses, lichens, green plants, fungi, which can be used by both humans and animals.

The layer of shrubs and low trees, on the other hand, is called undergrowth. This is a layer that performs a protective function for the soil.
The uppermost layer is the treetops, where many animal species live.