Question 4 • PA Human Anatomy & Physiology A 2026-2027 WHITE IC
Connective tissue binds and supports other tissues largely through its extracellular matrix, which contains protein fibers such as collagen and elastin. These fibers provide strength and flexibility, helping tissues and organs stay connected. Therefore, “mostly made of protein fibers” is the key property; tightly packed cells are more characteristic of epithelial tissue.
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