Which type of tissue is classified as liquid tissue?

Liquid tissue refers to types of tissues that exist in a fluid state, allowing for the transport of various substances throughout the body. Blood and lymph are the primary examples of liquid tissues. Blood, composed of red blood cells, white blood cells, platelets, and plasma, functions in the transportation of oxygen, nutrients, and waste products. Lymph plays a role in immune response and the maintenance of fluid balance in tissues.

While other tissue types—such as epithelial, nervous, and muscular tissues—serve crucial roles in the body, they are not classified as liquid tissues. Epithelial tissue forms protective layers and surfaces, nervous tissue is involved in transmitting signals, and muscular tissue is responsible for movement. Therefore, blood and lymph remain the prominent representatives of liquid tissue within the context of the question.