Which statement about connective tissue characteristics is true?

Connective tissue is primarily derived from embryonic mesoderm, making this statement accurate. The mesoderm is one of the three germ layers formed during embryonic development, with the other two being the ectoderm and endoderm. The mesoderm gives rise to various important structures in the body, including muscle, bone, blood, and connective tissue.

Connective tissues are characterized by a significant amount of extracellular matrix, which provides structural and functional support to tissues and organs. This feature is crucial in maintaining the integrity and versatility of the body, as they connect, support, bind, or separate other tissues and organs.

In contrast, ectoderm primarily develops into structures such as the skin and nervous system, while endoderm forms the lining of internal organs. The mention of connective tissue lacking a structural basis is also incorrect, as the extracellular matrix is essential in providing the necessary support and cohesion within tissues. Therefore, stating that connective tissue is derived from mesoderm accurately reflects its developmental origin and highlights its fundamental role in the body's architecture.