👉 The found fluid, also known as blood, is a complex and essential liquid in the human body. It's primarily composed of water (about 60%), but also contains red and white blood cells, platelets, proteins, and various other substances. This fluid serves multiple critical functions: it transports oxygen and nutrients to cells, carries away waste products, regulates body temperature, aids in blood clotting, and plays a vital role in immune responses. Essentially, blood is the circulatory system's lifeblood, ensuring that every cell receives what it needs to function properly and maintaining overall health.