What do groups of cells of the same kind make up?

Groups of cells of the same kind come together to form tissues. Tissues are the basic structural units in the body, and they perform specific functions that benefit the organism. For instance, muscle tissue is comprised of muscle cells that contract to facilitate movement, while connective tissue serves to support and bind other tissues together.

In a broader biological context, several types of tissues work together to form organs, which in turn are part of organ systems that coordinate more complex functions. Understanding this hierarchy—from cells to tissues to organs and systems—is fundamental in fields like anatomy, physiology, and nail technology, as it lays the groundwork for understanding how the body operates as a whole.