👉 The fluid in question is likely blood, given its characteristics of being a circulatory component that carries oxygen, nutrients, and hormones throughout the body while removing waste products. Blood is a complex mixture of cells (red blood cells, white blood cells, and platelets) suspended in plasma, a colorless liquid that serves as the medium for transporting these vital substances. It plays a crucial role in maintaining homeostasis, supporting immune responses, and facilitating cellular communication.