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.
The primary function of the epidermis is to be a protective barrier. The thicker, inner layer is called the dermis. The dermis is the most important part of the skin and is some-times referred to as âtrue skin.â The dermis contains capillaries, sweat and sebaceous glands, hair follicles, and nerves.True/False) â The elderly patient has more subcutaneous fat to insulate the body.13. (True/False) â The skin layers and under-lying adipose tissue serve as a unique outer shield of protection against the environment. Complete the following: 14. List four changes that commonly occur as the integumentary system ages.a.