Biotic factors are the living components of an ecosystem. They include all the organisms that live in an area, from the largest plants and animals to the smallest bacteria and fungi. Biotic factors interact with each other and with the abiotic factors (non-living things) of the environment to create a unique ecosystem.

Here is an interesting fact about a biotic factor:

* Trees communicate with each other through their roots. Trees release chemical signals into the soil that can be detected by other trees. These signals can warn other trees of danger, such as the presence of pests or diseases, or they can simply share information about the environment, such as the availability of water or nutrients.