Final answer:
Tightly packed cells are not associated with connective tissue. Connective tissue is made up of cells, ground substance, and extracellular fibers, which provide structural support and strength.
Step-by-step explanation:
Connective tissue is made up of three essential components: cells, ground substance, and extracellular fibers. Tightly packed cells are not associated with connective tissue. Connective tissue cells are scattered in spaces within a transparent or viscous ground substance, and the extracellular fibers provide structural support and strength to the tissue. Tissue fluid is also not associated with connective tissue.