Cavity-nester		Loose material on the Earth's surface in which plants grow
Fungus		Decomposer also known as "pill bugs"
Sowbug		Decomposer who creates air tunnels in soil
Soil		Microscopic decomposer
Salamander		Mushrooms, molds are types of this; cannot make own food
Humus		Part of soil that is remains of once living plants and animals
Insect-eater		Vitamins/minerals necessary for life and growth of plants and animals
Bacteria		Lives under moist decomposing wood to breathe through its skin
Nitrogen		Dead once living material lying on the ground or at the bottom of the vernal pool
Nutrients		A woodpecker is one of these
Earthworm		Chipmunk, raccoon, woodpecker
Detritus		Element recycled back to soil by dead organisms and animal waste