EXTRACELLULAR MATRIX. The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substanc e consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element.The extracellular materials which comprise the matrix are produced by fibroblasts.n ordinary connective tissue, the ground substanc e consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element. The extracellular materials which comprise the matrix are produced by fibroblasts.
Major airlines require more flight hours and experience from pilots than that demanded by commuter and regional airlines. As of 2012, the salary range for regional airline pilots was $16,500 to $60,000, according to AvScholars, an organization that guides would-be aviators in education and career.
They earn mean annual salaries of just less than $97,000. Pilots in the scenic and sightseeing transportation industry earn an average of $68,150 per year. Those who work for technical or trade schools have an average salary of $66,070 per year.