Organs are made up of tissues. Tissues are groups of similar cells that work together to perform a specific function. These tissues are organized into organs, which are structures composed of two or more types of tissues working together to carry out particular functions in the body. For example, the heart is an organ made up of cardiac muscle tissue, connective tissue, and nerve tissue. Each type of tissue contributes to the overall function of the organ. So, organs are primarily composed of tissues that collaborate to perform specific roles within the body.
