CBSE CLASS 11 CHAPTER 18.Body Fluids and Circulation

Circulation is the transport of nutrients, oxygen, CO2, and excretory products to the concerned tissues or organs. For circulation, simple organisms (sponges, coelenterates, etc.) use water from their surroundings. Complex organisms use body fluids (blood & lymph) for circulation. CIRCULATORY PATHWAY Circulatory system is 2 types- Open and Closed. Open circulatory system: Here, the blood … Continue reading CBSE CLASS 11 CHAPTER 18.Body Fluids and Circulation