NEET BIOLOGY

Detailed explanation-1: -Simple organisms like sponges and coelenterates circulate water from their surroundings through their body cavities to facilitate the cells to exchange these substances.

Detailed explanation-2: -Blood and lymph are the two main body fluids in the human body. Blood comprises plasma, white blood cells, red blood cells and platelets. Lymph comprises lymphocytes. The blood transports nutrients, wastes, and gases throughout the body.

Detailed explanation-3: -Lymph: Lymph is a type of circulatory fluid that exists in the body in addition to blood. Lymph is a clear or colorless fluid that circulates throughout the lymphatic system, which includes lymphatic vessels and lymph nodes.

Detailed explanation-4: -Tissue fluid, also known as interstitial fluid, is the fluid running between cells and blood capillaries in a tissue or an organ. It is very much similar to plasma and makes up the extracellular fluid, along with plasma.

Detailed explanation-5: -The water we drink is absorbed by the intestines, and circulated throughout the body in the form of body fluids such as blood. These perform various functions that keep us alive. They deliver oxygen and nutrients to the cells, and take away waste materials, which are then eliminated with urination.