Soil organisms

Bacteria

Breaks down organic matter

Fungi

Decompose tough material and form symbiotic relationships w/ plants

Protozoa

Single celled eukaryotes that feed on bacteria to help soil

Nematodes

Tiny worms that eat bacteria, fungi, and other small organisms; aid in decomposition

Earthworms

Mix soil layers and create tunnels for air and water

Arthropods

Insects, mites and springtails that aid decomposition & shred plant materials