GENERAL HISTOLOGY

Detailed explanation-1: -Tissue is a group of cells that have similar structure and that function together as a unit. Primary types of body tissues include epithelial, connective, muscular, and nervous tissues. Epithelial tissues form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.

Detailed explanation-2: -Organ-a group of tissues precisely arranged so that they can work together to perform specific functions.

Detailed explanation-3: -Complete answer: The Group of tissues performing particular functions in the body is called an organ or an organ is a structure composed of at least two or more tissue types. Each tissue performs a specific function of the body. Several organs together constitute an organ system.

Detailed explanation-4: -Tissue-a group of cells with similar structure and function.