Dense irregular connective tissue. Dense irregular connective tissue has fibers that are not arranged in parallel bundles as in dense regular connective tissue. Substances formed[edit] This tissue comprises a large portion of the dermis. This type of tissue is also in the protective white layer of the eyeball and in the deeper skin layers.
Definition of VERMICULITE. : any of various micaceous minerals that are hydrous silicates resulting usually from expansion of the granules of mica at high temperatures to give a lightweight highly water-absorbent material.
Vermiculite and perlite are common soilless growing mediums that are often added to soils, used as a sprouting medium, or used in hydroponics. Vermiculite is a mineral compound made of mica-like shiny flakes that can sometimes be contaminated with asbestos. Perlite is made from hydrated volcanic ore.eat moss is cut out of bogs. The lower, dead mosses are separated out, dried, and packaged as peat moss. Although in the past, peat moss was considered a renewable resource, the rate of harvest is currently greater than the production rate of peat bogs.