A group of specialized cells of the same type that perform a common function is called a(n) .

A group of specialized cells of the same type that perform a common function is called a "tissue." Tissues are essential components of multicellular organisms and are classified into four primary types: epithelial, connective, muscle, and nervous tissue. Each tissue type is composed of cells that work together to carry out specific tasks that are crucial for the body’s overall function.

Epithelial tissue covers body surfaces and lines cavities and organs, creating protective barriers. Connective tissue supports, binds, and protects other tissues and organs. Muscle tissue facilitates movement through contraction, while nervous tissue is responsible for transmitting impulses and processing information. The organization of these tissues contributes significantly to the structure and functionality of organs and systems in an organism.