Soil bacteria – Hyphae of root fungi t.s. – Fruiting body of mushroom (Psalliota) – Horsetail Equisetum – Moss leaf, surface view w.m. – Needle of pine (Pinus) t.s. – Venation of a deciduous leaf – Decomposing leaf, formation of humus – Mite from forest soil w.m. – Earthworm (Lumbricus) t.s. midbody.