The mesoderm is responsible for which of the following tissues?

The mesoderm is one of the three primary germ layers formed during embryonic development, the others being the ectoderm and endoderm. It plays a crucial role in forming many of the body’s internal structures and systems. Specifically, the mesoderm is responsible for developing connective tissues, muscles, and the skeletal system.

Muscle tissue, including skeletal, smooth, and cardiac muscles, originates from the mesoderm. Moreover, the bones and cartilage that make up the skeleton also derive from this layer. This layer is integral to the formation of several vital structures that allow movement, support, and protection of vital organs.

In contrast, the ectoderm develops into the skin and its appendages, as well as the nervous system, while the endoderm forms the linings of internal organs and structures including glands. Therefore, the mesoderm's specific contribution to muscles and the skeleton distinctly supports the identification of its role in these tissues.