Final answer:
Connective tissue is rich in an extracellular matrix composed of collagen fibers and proteoglycans, which not only supports and structures tissues but also enables cellular communication.
Step-by-step explanation:
The tissue that consists largely of extracellular material, including a variety of distinct fibers with cells scattered throughout it, is known as connective tissue. The main component of connective tissue is the extracellular matrix, which is rich in collagen fibers that are interwoven with proteoglycans, a type of glycoprotein. This matrix not only provides structure, support, and the ability to withstand external stresses, but also facilitates communication between cells, which is essential for maintaining tissue function.
The extracellular matrix's extensive presence in connective tissues grants different types their unique properties. Connective tissues include several types, such as loose connective tissue, dense connective tissue, supportive tissue like cartilage and bone, and fluid tissues like blood. Each of these connective tissues has its specific composition and function within the body.