ORGANS An organ is formed by two or more types of tissues working together to perform a particular function.example
of organs include the heart, skin, lungs, kidneys, eyes, and ears. The skin covers the body. It acts as a barrier against infection, physical trauma and water loss. The skin is an organ because it consist various types of tissues joined together to perform specific functions. The skin is
composed of two main layers, the epidermis and dermis. The epidermis, which is the outer layer of the skin, is made up of
epithelial tissue. The epithelial cells constantly undergo cell division. The dermis is composed of connective tissue, nerve tissue, epithelial tissue and muscle tissue.