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
Soil organisms are important because they return nutrients to the soil by decomposing dead organic matter and organic waste. Some also perform nitrogen fixation, which is a process of making nitrogen into ammonia so that it can be turned into amino acids, the building blocks of all organisms.oil organisms break down nutrients in the soil making them  available to plant life they also provide food for higher life  forms such as earth worms which in turn are bene â¦ ficial as they are  the natural tillers of the earth.