Stratum basale epidermidis. Definition. noun. Latin term for basal cell layer of epidermis, the innermost layer composed of basal cells that lies at the base of the epidermis or above the dermis.Supplement. The cells of this layer are actively dividing to provide new cells to replenish lost skin from normal shedding.tratum basale epidermidis. Definition. noun. Latin term for basal cell layer of epidermis, the innermost layer composed of basal cells that lies at the base of the epidermis or above the dermis.
Lichens Contribute to Soil Formation. Lichens thrive in undisturbed sites where nothing else will grow. They grow on rocks, barren soil and the bark of dead or live trees. Lichens are not parasitic when they grow on trees, they just use the tree bark as a home. They enrich the soil by trapping water, dust and silt. When lichens die they contribute organic matter to the soil, improving the soil so that other plants can grow there. Lichens Fix Nitrogen
These organisms include earthworms, nematodes, protozoa, fungi, bacteria and different arthropods. Soil biology plays a vital role in determining many soil characteristics. The decomposition of organic matter by soil organisms has an immense influence on soil fertility, plant growth, soil structure, and carbon storage.erobic bacteria are most active in a soil that is moist (but not saturated, as this will deprive aerobic bacteria of the air that they require), and neutral soil pH, and where there is plenty of food (carbohydrates and micronutrients from organic matter) available.