A mycorrhiza (Greek: Î¼ÏÎºÏÏ, mykÃ³s, fungus, and ÏÎ¯Î¶Î±, riza, root, pl. mycorrhizae or mycorrhizas) is a symbiotic association between a fungus and the roots of a vascular host plant. The term mycorrhiza refers to the role of the fungi in the plants' rhizosphere, its root system. Mycorrhizae play important roles in soil biology and soil chemistry.
The dermis consists of a papillary and a reticular layer which serve to protect and cushion the body from stress and strain. Differentiate among the regions of the dermis and the hypodermis. The dermis is divided into a papillary region and a reticular region.
Dermis. The dermis is the middle layer of skin, and it actually has two layers, according to the AAD. The papillary layer consists of the loose connective tissue, while the reticular layer is the deep layer of the dermis and consists of dense connective tissue.he human body's largest organ is the integumentary system, which includes the skin, hair, nails, glands and nerve receptors. Skin weighs about 6 lbs.