It carries oxygen nutrients salts hormones and other substances that sustain life?

The substance that carries oxygen, nutrients, salts, hormones, and other essential components that sustain life is blood. Blood circulates throughout the body via the cardiovascular system, delivering these vital substances to cells and tissues while also removing waste products. It plays a crucial role in maintaining homeostasis and supporting overall health. Additionally, blood is composed of red blood cells, white blood cells, plasma, and platelets, each serving specific functions in the body's physiology.